TPTP Problem File: NUM376+1.030.p

View Solutions - Solve Problem

%------------------------------------------------------------------------------
% File     : NUM376+1.030 : TPTP v8.2.0. Released v3.2.0.
% Domain   : Number Theory
% Problem  : Find assignment in 0-30 to satisfy inequality, hard
% Version  : [Cim05] axioms.
% English  : Find an assignment to two variables which are in range, so that
%            sum(sum(pred(x), succ(y)), sum(pred(y), succ(x))) and
%            sum(sum(pred(x), succ(x)), sum(pred(y), succ(y))) are not equal.

% Refs     : [Cim05] Cimatti (2006), Email to G. Sutcliffe
% Source   : [Cim05]
% Names    :

% Status   : Unsatisfiable
% Rating   : 0.00 v3.2.0
% Syntax   : Number of formulae    :    1 (   0 unt;   0 def)
%            Number of atoms       : 1551 (1551 equ)
%            Maximal formula atoms : 1551 (1551 avg)
%            Number of connectives : 2016 ( 466   ~;  60   |;1490   &)
%                                         (   0 <=>;   0  =>;   0  <=;   0 <~>)
%            Maximal formula depth : 1494 (1494 avg)
%            Maximal term depth    :    4 (   1 avg)
%            Number of predicates  :    1 (   0 usr;   0 prp; 2-2 aty)
%            Number of functors    :   34 (  34 usr;  31 con; 0-2 aty)
%            Number of variables   :    2 (   0   !;   2   ?)
% SPC      : FOF_UNS_RFO_PEQ

% Comments :
%------------------------------------------------------------------------------
fof(try_satisfy_this,axiom,
    ? [X,Y] :
      ( succ(n0) = n1
      & succ(n1) = n2
      & succ(n2) = n3
      & succ(n3) = n4
      & succ(n4) = n5
      & succ(n5) = n6
      & succ(n6) = n7
      & succ(n7) = n8
      & succ(n8) = n9
      & succ(n9) = n10
      & succ(n10) = n11
      & succ(n11) = n12
      & succ(n12) = n13
      & succ(n13) = n14
      & succ(n14) = n15
      & succ(n15) = n16
      & succ(n16) = n17
      & succ(n17) = n18
      & succ(n18) = n19
      & succ(n19) = n20
      & succ(n20) = n21
      & succ(n21) = n22
      & succ(n22) = n23
      & succ(n23) = n24
      & succ(n24) = n25
      & succ(n25) = n26
      & succ(n26) = n27
      & succ(n27) = n28
      & succ(n28) = n29
      & succ(n29) = n30
      & succ(n30) = n0
      & pred(n0) = n30
      & pred(n1) = n0
      & pred(n2) = n1
      & pred(n3) = n2
      & pred(n4) = n3
      & pred(n5) = n4
      & pred(n6) = n5
      & pred(n7) = n6
      & pred(n8) = n7
      & pred(n9) = n8
      & pred(n10) = n9
      & pred(n11) = n10
      & pred(n12) = n11
      & pred(n13) = n12
      & pred(n14) = n13
      & pred(n15) = n14
      & pred(n16) = n15
      & pred(n17) = n16
      & pred(n18) = n17
      & pred(n19) = n18
      & pred(n20) = n19
      & pred(n21) = n20
      & pred(n22) = n21
      & pred(n23) = n22
      & pred(n24) = n23
      & pred(n25) = n24
      & pred(n26) = n25
      & pred(n27) = n26
      & pred(n28) = n27
      & pred(n29) = n28
      & pred(n30) = n29
      & sum(n0,n0) = n0
      & sum(n0,n1) = n1
      & sum(n0,n2) = n2
      & sum(n0,n3) = n3
      & sum(n0,n4) = n4
      & sum(n0,n5) = n5
      & sum(n0,n6) = n6
      & sum(n0,n7) = n7
      & sum(n0,n8) = n8
      & sum(n0,n9) = n9
      & sum(n0,n10) = n10
      & sum(n0,n11) = n11
      & sum(n0,n12) = n12
      & sum(n0,n13) = n13
      & sum(n0,n14) = n14
      & sum(n0,n15) = n15
      & sum(n0,n16) = n16
      & sum(n0,n17) = n17
      & sum(n0,n18) = n18
      & sum(n0,n19) = n19
      & sum(n0,n20) = n20
      & sum(n0,n21) = n21
      & sum(n0,n22) = n22
      & sum(n0,n23) = n23
      & sum(n0,n24) = n24
      & sum(n0,n25) = n25
      & sum(n0,n26) = n26
      & sum(n0,n27) = n27
      & sum(n0,n28) = n28
      & sum(n0,n29) = n29
      & sum(n0,n30) = n30
      & sum(n1,n0) = n1
      & sum(n1,n1) = n2
      & sum(n1,n2) = n3
      & sum(n1,n3) = n4
      & sum(n1,n4) = n5
      & sum(n1,n5) = n6
      & sum(n1,n6) = n7
      & sum(n1,n7) = n8
      & sum(n1,n8) = n9
      & sum(n1,n9) = n10
      & sum(n1,n10) = n11
      & sum(n1,n11) = n12
      & sum(n1,n12) = n13
      & sum(n1,n13) = n14
      & sum(n1,n14) = n15
      & sum(n1,n15) = n16
      & sum(n1,n16) = n17
      & sum(n1,n17) = n18
      & sum(n1,n18) = n19
      & sum(n1,n19) = n20
      & sum(n1,n20) = n21
      & sum(n1,n21) = n22
      & sum(n1,n22) = n23
      & sum(n1,n23) = n24
      & sum(n1,n24) = n25
      & sum(n1,n25) = n26
      & sum(n1,n26) = n27
      & sum(n1,n27) = n28
      & sum(n1,n28) = n29
      & sum(n1,n29) = n30
      & sum(n1,n30) = n0
      & sum(n2,n0) = n2
      & sum(n2,n1) = n3
      & sum(n2,n2) = n4
      & sum(n2,n3) = n5
      & sum(n2,n4) = n6
      & sum(n2,n5) = n7
      & sum(n2,n6) = n8
      & sum(n2,n7) = n9
      & sum(n2,n8) = n10
      & sum(n2,n9) = n11
      & sum(n2,n10) = n12
      & sum(n2,n11) = n13
      & sum(n2,n12) = n14
      & sum(n2,n13) = n15
      & sum(n2,n14) = n16
      & sum(n2,n15) = n17
      & sum(n2,n16) = n18
      & sum(n2,n17) = n19
      & sum(n2,n18) = n20
      & sum(n2,n19) = n21
      & sum(n2,n20) = n22
      & sum(n2,n21) = n23
      & sum(n2,n22) = n24
      & sum(n2,n23) = n25
      & sum(n2,n24) = n26
      & sum(n2,n25) = n27
      & sum(n2,n26) = n28
      & sum(n2,n27) = n29
      & sum(n2,n28) = n30
      & sum(n2,n29) = n0
      & sum(n2,n30) = n1
      & sum(n3,n0) = n3
      & sum(n3,n1) = n4
      & sum(n3,n2) = n5
      & sum(n3,n3) = n6
      & sum(n3,n4) = n7
      & sum(n3,n5) = n8
      & sum(n3,n6) = n9
      & sum(n3,n7) = n10
      & sum(n3,n8) = n11
      & sum(n3,n9) = n12
      & sum(n3,n10) = n13
      & sum(n3,n11) = n14
      & sum(n3,n12) = n15
      & sum(n3,n13) = n16
      & sum(n3,n14) = n17
      & sum(n3,n15) = n18
      & sum(n3,n16) = n19
      & sum(n3,n17) = n20
      & sum(n3,n18) = n21
      & sum(n3,n19) = n22
      & sum(n3,n20) = n23
      & sum(n3,n21) = n24
      & sum(n3,n22) = n25
      & sum(n3,n23) = n26
      & sum(n3,n24) = n27
      & sum(n3,n25) = n28
      & sum(n3,n26) = n29
      & sum(n3,n27) = n30
      & sum(n3,n28) = n0
      & sum(n3,n29) = n1
      & sum(n3,n30) = n2
      & sum(n4,n0) = n4
      & sum(n4,n1) = n5
      & sum(n4,n2) = n6
      & sum(n4,n3) = n7
      & sum(n4,n4) = n8
      & sum(n4,n5) = n9
      & sum(n4,n6) = n10
      & sum(n4,n7) = n11
      & sum(n4,n8) = n12
      & sum(n4,n9) = n13
      & sum(n4,n10) = n14
      & sum(n4,n11) = n15
      & sum(n4,n12) = n16
      & sum(n4,n13) = n17
      & sum(n4,n14) = n18
      & sum(n4,n15) = n19
      & sum(n4,n16) = n20
      & sum(n4,n17) = n21
      & sum(n4,n18) = n22
      & sum(n4,n19) = n23
      & sum(n4,n20) = n24
      & sum(n4,n21) = n25
      & sum(n4,n22) = n26
      & sum(n4,n23) = n27
      & sum(n4,n24) = n28
      & sum(n4,n25) = n29
      & sum(n4,n26) = n30
      & sum(n4,n27) = n0
      & sum(n4,n28) = n1
      & sum(n4,n29) = n2
      & sum(n4,n30) = n3
      & sum(n5,n0) = n5
      & sum(n5,n1) = n6
      & sum(n5,n2) = n7
      & sum(n5,n3) = n8
      & sum(n5,n4) = n9
      & sum(n5,n5) = n10
      & sum(n5,n6) = n11
      & sum(n5,n7) = n12
      & sum(n5,n8) = n13
      & sum(n5,n9) = n14
      & sum(n5,n10) = n15
      & sum(n5,n11) = n16
      & sum(n5,n12) = n17
      & sum(n5,n13) = n18
      & sum(n5,n14) = n19
      & sum(n5,n15) = n20
      & sum(n5,n16) = n21
      & sum(n5,n17) = n22
      & sum(n5,n18) = n23
      & sum(n5,n19) = n24
      & sum(n5,n20) = n25
      & sum(n5,n21) = n26
      & sum(n5,n22) = n27
      & sum(n5,n23) = n28
      & sum(n5,n24) = n29
      & sum(n5,n25) = n30
      & sum(n5,n26) = n0
      & sum(n5,n27) = n1
      & sum(n5,n28) = n2
      & sum(n5,n29) = n3
      & sum(n5,n30) = n4
      & sum(n6,n0) = n6
      & sum(n6,n1) = n7
      & sum(n6,n2) = n8
      & sum(n6,n3) = n9
      & sum(n6,n4) = n10
      & sum(n6,n5) = n11
      & sum(n6,n6) = n12
      & sum(n6,n7) = n13
      & sum(n6,n8) = n14
      & sum(n6,n9) = n15
      & sum(n6,n10) = n16
      & sum(n6,n11) = n17
      & sum(n6,n12) = n18
      & sum(n6,n13) = n19
      & sum(n6,n14) = n20
      & sum(n6,n15) = n21
      & sum(n6,n16) = n22
      & sum(n6,n17) = n23
      & sum(n6,n18) = n24
      & sum(n6,n19) = n25
      & sum(n6,n20) = n26
      & sum(n6,n21) = n27
      & sum(n6,n22) = n28
      & sum(n6,n23) = n29
      & sum(n6,n24) = n30
      & sum(n6,n25) = n0
      & sum(n6,n26) = n1
      & sum(n6,n27) = n2
      & sum(n6,n28) = n3
      & sum(n6,n29) = n4
      & sum(n6,n30) = n5
      & sum(n7,n0) = n7
      & sum(n7,n1) = n8
      & sum(n7,n2) = n9
      & sum(n7,n3) = n10
      & sum(n7,n4) = n11
      & sum(n7,n5) = n12
      & sum(n7,n6) = n13
      & sum(n7,n7) = n14
      & sum(n7,n8) = n15
      & sum(n7,n9) = n16
      & sum(n7,n10) = n17
      & sum(n7,n11) = n18
      & sum(n7,n12) = n19
      & sum(n7,n13) = n20
      & sum(n7,n14) = n21
      & sum(n7,n15) = n22
      & sum(n7,n16) = n23
      & sum(n7,n17) = n24
      & sum(n7,n18) = n25
      & sum(n7,n19) = n26
      & sum(n7,n20) = n27
      & sum(n7,n21) = n28
      & sum(n7,n22) = n29
      & sum(n7,n23) = n30
      & sum(n7,n24) = n0
      & sum(n7,n25) = n1
      & sum(n7,n26) = n2
      & sum(n7,n27) = n3
      & sum(n7,n28) = n4
      & sum(n7,n29) = n5
      & sum(n7,n30) = n6
      & sum(n8,n0) = n8
      & sum(n8,n1) = n9
      & sum(n8,n2) = n10
      & sum(n8,n3) = n11
      & sum(n8,n4) = n12
      & sum(n8,n5) = n13
      & sum(n8,n6) = n14
      & sum(n8,n7) = n15
      & sum(n8,n8) = n16
      & sum(n8,n9) = n17
      & sum(n8,n10) = n18
      & sum(n8,n11) = n19
      & sum(n8,n12) = n20
      & sum(n8,n13) = n21
      & sum(n8,n14) = n22
      & sum(n8,n15) = n23
      & sum(n8,n16) = n24
      & sum(n8,n17) = n25
      & sum(n8,n18) = n26
      & sum(n8,n19) = n27
      & sum(n8,n20) = n28
      & sum(n8,n21) = n29
      & sum(n8,n22) = n30
      & sum(n8,n23) = n0
      & sum(n8,n24) = n1
      & sum(n8,n25) = n2
      & sum(n8,n26) = n3
      & sum(n8,n27) = n4
      & sum(n8,n28) = n5
      & sum(n8,n29) = n6
      & sum(n8,n30) = n7
      & sum(n9,n0) = n9
      & sum(n9,n1) = n10
      & sum(n9,n2) = n11
      & sum(n9,n3) = n12
      & sum(n9,n4) = n13
      & sum(n9,n5) = n14
      & sum(n9,n6) = n15
      & sum(n9,n7) = n16
      & sum(n9,n8) = n17
      & sum(n9,n9) = n18
      & sum(n9,n10) = n19
      & sum(n9,n11) = n20
      & sum(n9,n12) = n21
      & sum(n9,n13) = n22
      & sum(n9,n14) = n23
      & sum(n9,n15) = n24
      & sum(n9,n16) = n25
      & sum(n9,n17) = n26
      & sum(n9,n18) = n27
      & sum(n9,n19) = n28
      & sum(n9,n20) = n29
      & sum(n9,n21) = n30
      & sum(n9,n22) = n0
      & sum(n9,n23) = n1
      & sum(n9,n24) = n2
      & sum(n9,n25) = n3
      & sum(n9,n26) = n4
      & sum(n9,n27) = n5
      & sum(n9,n28) = n6
      & sum(n9,n29) = n7
      & sum(n9,n30) = n8
      & sum(n10,n0) = n10
      & sum(n10,n1) = n11
      & sum(n10,n2) = n12
      & sum(n10,n3) = n13
      & sum(n10,n4) = n14
      & sum(n10,n5) = n15
      & sum(n10,n6) = n16
      & sum(n10,n7) = n17
      & sum(n10,n8) = n18
      & sum(n10,n9) = n19
      & sum(n10,n10) = n20
      & sum(n10,n11) = n21
      & sum(n10,n12) = n22
      & sum(n10,n13) = n23
      & sum(n10,n14) = n24
      & sum(n10,n15) = n25
      & sum(n10,n16) = n26
      & sum(n10,n17) = n27
      & sum(n10,n18) = n28
      & sum(n10,n19) = n29
      & sum(n10,n20) = n30
      & sum(n10,n21) = n0
      & sum(n10,n22) = n1
      & sum(n10,n23) = n2
      & sum(n10,n24) = n3
      & sum(n10,n25) = n4
      & sum(n10,n26) = n5
      & sum(n10,n27) = n6
      & sum(n10,n28) = n7
      & sum(n10,n29) = n8
      & sum(n10,n30) = n9
      & sum(n11,n0) = n11
      & sum(n11,n1) = n12
      & sum(n11,n2) = n13
      & sum(n11,n3) = n14
      & sum(n11,n4) = n15
      & sum(n11,n5) = n16
      & sum(n11,n6) = n17
      & sum(n11,n7) = n18
      & sum(n11,n8) = n19
      & sum(n11,n9) = n20
      & sum(n11,n10) = n21
      & sum(n11,n11) = n22
      & sum(n11,n12) = n23
      & sum(n11,n13) = n24
      & sum(n11,n14) = n25
      & sum(n11,n15) = n26
      & sum(n11,n16) = n27
      & sum(n11,n17) = n28
      & sum(n11,n18) = n29
      & sum(n11,n19) = n30
      & sum(n11,n20) = n0
      & sum(n11,n21) = n1
      & sum(n11,n22) = n2
      & sum(n11,n23) = n3
      & sum(n11,n24) = n4
      & sum(n11,n25) = n5
      & sum(n11,n26) = n6
      & sum(n11,n27) = n7
      & sum(n11,n28) = n8
      & sum(n11,n29) = n9
      & sum(n11,n30) = n10
      & sum(n12,n0) = n12
      & sum(n12,n1) = n13
      & sum(n12,n2) = n14
      & sum(n12,n3) = n15
      & sum(n12,n4) = n16
      & sum(n12,n5) = n17
      & sum(n12,n6) = n18
      & sum(n12,n7) = n19
      & sum(n12,n8) = n20
      & sum(n12,n9) = n21
      & sum(n12,n10) = n22
      & sum(n12,n11) = n23
      & sum(n12,n12) = n24
      & sum(n12,n13) = n25
      & sum(n12,n14) = n26
      & sum(n12,n15) = n27
      & sum(n12,n16) = n28
      & sum(n12,n17) = n29
      & sum(n12,n18) = n30
      & sum(n12,n19) = n0
      & sum(n12,n20) = n1
      & sum(n12,n21) = n2
      & sum(n12,n22) = n3
      & sum(n12,n23) = n4
      & sum(n12,n24) = n5
      & sum(n12,n25) = n6
      & sum(n12,n26) = n7
      & sum(n12,n27) = n8
      & sum(n12,n28) = n9
      & sum(n12,n29) = n10
      & sum(n12,n30) = n11
      & sum(n13,n0) = n13
      & sum(n13,n1) = n14
      & sum(n13,n2) = n15
      & sum(n13,n3) = n16
      & sum(n13,n4) = n17
      & sum(n13,n5) = n18
      & sum(n13,n6) = n19
      & sum(n13,n7) = n20
      & sum(n13,n8) = n21
      & sum(n13,n9) = n22
      & sum(n13,n10) = n23
      & sum(n13,n11) = n24
      & sum(n13,n12) = n25
      & sum(n13,n13) = n26
      & sum(n13,n14) = n27
      & sum(n13,n15) = n28
      & sum(n13,n16) = n29
      & sum(n13,n17) = n30
      & sum(n13,n18) = n0
      & sum(n13,n19) = n1
      & sum(n13,n20) = n2
      & sum(n13,n21) = n3
      & sum(n13,n22) = n4
      & sum(n13,n23) = n5
      & sum(n13,n24) = n6
      & sum(n13,n25) = n7
      & sum(n13,n26) = n8
      & sum(n13,n27) = n9
      & sum(n13,n28) = n10
      & sum(n13,n29) = n11
      & sum(n13,n30) = n12
      & sum(n14,n0) = n14
      & sum(n14,n1) = n15
      & sum(n14,n2) = n16
      & sum(n14,n3) = n17
      & sum(n14,n4) = n18
      & sum(n14,n5) = n19
      & sum(n14,n6) = n20
      & sum(n14,n7) = n21
      & sum(n14,n8) = n22
      & sum(n14,n9) = n23
      & sum(n14,n10) = n24
      & sum(n14,n11) = n25
      & sum(n14,n12) = n26
      & sum(n14,n13) = n27
      & sum(n14,n14) = n28
      & sum(n14,n15) = n29
      & sum(n14,n16) = n30
      & sum(n14,n17) = n0
      & sum(n14,n18) = n1
      & sum(n14,n19) = n2
      & sum(n14,n20) = n3
      & sum(n14,n21) = n4
      & sum(n14,n22) = n5
      & sum(n14,n23) = n6
      & sum(n14,n24) = n7
      & sum(n14,n25) = n8
      & sum(n14,n26) = n9
      & sum(n14,n27) = n10
      & sum(n14,n28) = n11
      & sum(n14,n29) = n12
      & sum(n14,n30) = n13
      & sum(n15,n0) = n15
      & sum(n15,n1) = n16
      & sum(n15,n2) = n17
      & sum(n15,n3) = n18
      & sum(n15,n4) = n19
      & sum(n15,n5) = n20
      & sum(n15,n6) = n21
      & sum(n15,n7) = n22
      & sum(n15,n8) = n23
      & sum(n15,n9) = n24
      & sum(n15,n10) = n25
      & sum(n15,n11) = n26
      & sum(n15,n12) = n27
      & sum(n15,n13) = n28
      & sum(n15,n14) = n29
      & sum(n15,n15) = n30
      & sum(n15,n16) = n0
      & sum(n15,n17) = n1
      & sum(n15,n18) = n2
      & sum(n15,n19) = n3
      & sum(n15,n20) = n4
      & sum(n15,n21) = n5
      & sum(n15,n22) = n6
      & sum(n15,n23) = n7
      & sum(n15,n24) = n8
      & sum(n15,n25) = n9
      & sum(n15,n26) = n10
      & sum(n15,n27) = n11
      & sum(n15,n28) = n12
      & sum(n15,n29) = n13
      & sum(n15,n30) = n14
      & sum(n16,n0) = n16
      & sum(n16,n1) = n17
      & sum(n16,n2) = n18
      & sum(n16,n3) = n19
      & sum(n16,n4) = n20
      & sum(n16,n5) = n21
      & sum(n16,n6) = n22
      & sum(n16,n7) = n23
      & sum(n16,n8) = n24
      & sum(n16,n9) = n25
      & sum(n16,n10) = n26
      & sum(n16,n11) = n27
      & sum(n16,n12) = n28
      & sum(n16,n13) = n29
      & sum(n16,n14) = n30
      & sum(n16,n15) = n0
      & sum(n16,n16) = n1
      & sum(n16,n17) = n2
      & sum(n16,n18) = n3
      & sum(n16,n19) = n4
      & sum(n16,n20) = n5
      & sum(n16,n21) = n6
      & sum(n16,n22) = n7
      & sum(n16,n23) = n8
      & sum(n16,n24) = n9
      & sum(n16,n25) = n10
      & sum(n16,n26) = n11
      & sum(n16,n27) = n12
      & sum(n16,n28) = n13
      & sum(n16,n29) = n14
      & sum(n16,n30) = n15
      & sum(n17,n0) = n17
      & sum(n17,n1) = n18
      & sum(n17,n2) = n19
      & sum(n17,n3) = n20
      & sum(n17,n4) = n21
      & sum(n17,n5) = n22
      & sum(n17,n6) = n23
      & sum(n17,n7) = n24
      & sum(n17,n8) = n25
      & sum(n17,n9) = n26
      & sum(n17,n10) = n27
      & sum(n17,n11) = n28
      & sum(n17,n12) = n29
      & sum(n17,n13) = n30
      & sum(n17,n14) = n0
      & sum(n17,n15) = n1
      & sum(n17,n16) = n2
      & sum(n17,n17) = n3
      & sum(n17,n18) = n4
      & sum(n17,n19) = n5
      & sum(n17,n20) = n6
      & sum(n17,n21) = n7
      & sum(n17,n22) = n8
      & sum(n17,n23) = n9
      & sum(n17,n24) = n10
      & sum(n17,n25) = n11
      & sum(n17,n26) = n12
      & sum(n17,n27) = n13
      & sum(n17,n28) = n14
      & sum(n17,n29) = n15
      & sum(n17,n30) = n16
      & sum(n18,n0) = n18
      & sum(n18,n1) = n19
      & sum(n18,n2) = n20
      & sum(n18,n3) = n21
      & sum(n18,n4) = n22
      & sum(n18,n5) = n23
      & sum(n18,n6) = n24
      & sum(n18,n7) = n25
      & sum(n18,n8) = n26
      & sum(n18,n9) = n27
      & sum(n18,n10) = n28
      & sum(n18,n11) = n29
      & sum(n18,n12) = n30
      & sum(n18,n13) = n0
      & sum(n18,n14) = n1
      & sum(n18,n15) = n2
      & sum(n18,n16) = n3
      & sum(n18,n17) = n4
      & sum(n18,n18) = n5
      & sum(n18,n19) = n6
      & sum(n18,n20) = n7
      & sum(n18,n21) = n8
      & sum(n18,n22) = n9
      & sum(n18,n23) = n10
      & sum(n18,n24) = n11
      & sum(n18,n25) = n12
      & sum(n18,n26) = n13
      & sum(n18,n27) = n14
      & sum(n18,n28) = n15
      & sum(n18,n29) = n16
      & sum(n18,n30) = n17
      & sum(n19,n0) = n19
      & sum(n19,n1) = n20
      & sum(n19,n2) = n21
      & sum(n19,n3) = n22
      & sum(n19,n4) = n23
      & sum(n19,n5) = n24
      & sum(n19,n6) = n25
      & sum(n19,n7) = n26
      & sum(n19,n8) = n27
      & sum(n19,n9) = n28
      & sum(n19,n10) = n29
      & sum(n19,n11) = n30
      & sum(n19,n12) = n0
      & sum(n19,n13) = n1
      & sum(n19,n14) = n2
      & sum(n19,n15) = n3
      & sum(n19,n16) = n4
      & sum(n19,n17) = n5
      & sum(n19,n18) = n6
      & sum(n19,n19) = n7
      & sum(n19,n20) = n8
      & sum(n19,n21) = n9
      & sum(n19,n22) = n10
      & sum(n19,n23) = n11
      & sum(n19,n24) = n12
      & sum(n19,n25) = n13
      & sum(n19,n26) = n14
      & sum(n19,n27) = n15
      & sum(n19,n28) = n16
      & sum(n19,n29) = n17
      & sum(n19,n30) = n18
      & sum(n20,n0) = n20
      & sum(n20,n1) = n21
      & sum(n20,n2) = n22
      & sum(n20,n3) = n23
      & sum(n20,n4) = n24
      & sum(n20,n5) = n25
      & sum(n20,n6) = n26
      & sum(n20,n7) = n27
      & sum(n20,n8) = n28
      & sum(n20,n9) = n29
      & sum(n20,n10) = n30
      & sum(n20,n11) = n0
      & sum(n20,n12) = n1
      & sum(n20,n13) = n2
      & sum(n20,n14) = n3
      & sum(n20,n15) = n4
      & sum(n20,n16) = n5
      & sum(n20,n17) = n6
      & sum(n20,n18) = n7
      & sum(n20,n19) = n8
      & sum(n20,n20) = n9
      & sum(n20,n21) = n10
      & sum(n20,n22) = n11
      & sum(n20,n23) = n12
      & sum(n20,n24) = n13
      & sum(n20,n25) = n14
      & sum(n20,n26) = n15
      & sum(n20,n27) = n16
      & sum(n20,n28) = n17
      & sum(n20,n29) = n18
      & sum(n20,n30) = n19
      & sum(n21,n0) = n21
      & sum(n21,n1) = n22
      & sum(n21,n2) = n23
      & sum(n21,n3) = n24
      & sum(n21,n4) = n25
      & sum(n21,n5) = n26
      & sum(n21,n6) = n27
      & sum(n21,n7) = n28
      & sum(n21,n8) = n29
      & sum(n21,n9) = n30
      & sum(n21,n10) = n0
      & sum(n21,n11) = n1
      & sum(n21,n12) = n2
      & sum(n21,n13) = n3
      & sum(n21,n14) = n4
      & sum(n21,n15) = n5
      & sum(n21,n16) = n6
      & sum(n21,n17) = n7
      & sum(n21,n18) = n8
      & sum(n21,n19) = n9
      & sum(n21,n20) = n10
      & sum(n21,n21) = n11
      & sum(n21,n22) = n12
      & sum(n21,n23) = n13
      & sum(n21,n24) = n14
      & sum(n21,n25) = n15
      & sum(n21,n26) = n16
      & sum(n21,n27) = n17
      & sum(n21,n28) = n18
      & sum(n21,n29) = n19
      & sum(n21,n30) = n20
      & sum(n22,n0) = n22
      & sum(n22,n1) = n23
      & sum(n22,n2) = n24
      & sum(n22,n3) = n25
      & sum(n22,n4) = n26
      & sum(n22,n5) = n27
      & sum(n22,n6) = n28
      & sum(n22,n7) = n29
      & sum(n22,n8) = n30
      & sum(n22,n9) = n0
      & sum(n22,n10) = n1
      & sum(n22,n11) = n2
      & sum(n22,n12) = n3
      & sum(n22,n13) = n4
      & sum(n22,n14) = n5
      & sum(n22,n15) = n6
      & sum(n22,n16) = n7
      & sum(n22,n17) = n8
      & sum(n22,n18) = n9
      & sum(n22,n19) = n10
      & sum(n22,n20) = n11
      & sum(n22,n21) = n12
      & sum(n22,n22) = n13
      & sum(n22,n23) = n14
      & sum(n22,n24) = n15
      & sum(n22,n25) = n16
      & sum(n22,n26) = n17
      & sum(n22,n27) = n18
      & sum(n22,n28) = n19
      & sum(n22,n29) = n20
      & sum(n22,n30) = n21
      & sum(n23,n0) = n23
      & sum(n23,n1) = n24
      & sum(n23,n2) = n25
      & sum(n23,n3) = n26
      & sum(n23,n4) = n27
      & sum(n23,n5) = n28
      & sum(n23,n6) = n29
      & sum(n23,n7) = n30
      & sum(n23,n8) = n0
      & sum(n23,n9) = n1
      & sum(n23,n10) = n2
      & sum(n23,n11) = n3
      & sum(n23,n12) = n4
      & sum(n23,n13) = n5
      & sum(n23,n14) = n6
      & sum(n23,n15) = n7
      & sum(n23,n16) = n8
      & sum(n23,n17) = n9
      & sum(n23,n18) = n10
      & sum(n23,n19) = n11
      & sum(n23,n20) = n12
      & sum(n23,n21) = n13
      & sum(n23,n22) = n14
      & sum(n23,n23) = n15
      & sum(n23,n24) = n16
      & sum(n23,n25) = n17
      & sum(n23,n26) = n18
      & sum(n23,n27) = n19
      & sum(n23,n28) = n20
      & sum(n23,n29) = n21
      & sum(n23,n30) = n22
      & sum(n24,n0) = n24
      & sum(n24,n1) = n25
      & sum(n24,n2) = n26
      & sum(n24,n3) = n27
      & sum(n24,n4) = n28
      & sum(n24,n5) = n29
      & sum(n24,n6) = n30
      & sum(n24,n7) = n0
      & sum(n24,n8) = n1
      & sum(n24,n9) = n2
      & sum(n24,n10) = n3
      & sum(n24,n11) = n4
      & sum(n24,n12) = n5
      & sum(n24,n13) = n6
      & sum(n24,n14) = n7
      & sum(n24,n15) = n8
      & sum(n24,n16) = n9
      & sum(n24,n17) = n10
      & sum(n24,n18) = n11
      & sum(n24,n19) = n12
      & sum(n24,n20) = n13
      & sum(n24,n21) = n14
      & sum(n24,n22) = n15
      & sum(n24,n23) = n16
      & sum(n24,n24) = n17
      & sum(n24,n25) = n18
      & sum(n24,n26) = n19
      & sum(n24,n27) = n20
      & sum(n24,n28) = n21
      & sum(n24,n29) = n22
      & sum(n24,n30) = n23
      & sum(n25,n0) = n25
      & sum(n25,n1) = n26
      & sum(n25,n2) = n27
      & sum(n25,n3) = n28
      & sum(n25,n4) = n29
      & sum(n25,n5) = n30
      & sum(n25,n6) = n0
      & sum(n25,n7) = n1
      & sum(n25,n8) = n2
      & sum(n25,n9) = n3
      & sum(n25,n10) = n4
      & sum(n25,n11) = n5
      & sum(n25,n12) = n6
      & sum(n25,n13) = n7
      & sum(n25,n14) = n8
      & sum(n25,n15) = n9
      & sum(n25,n16) = n10
      & sum(n25,n17) = n11
      & sum(n25,n18) = n12
      & sum(n25,n19) = n13
      & sum(n25,n20) = n14
      & sum(n25,n21) = n15
      & sum(n25,n22) = n16
      & sum(n25,n23) = n17
      & sum(n25,n24) = n18
      & sum(n25,n25) = n19
      & sum(n25,n26) = n20
      & sum(n25,n27) = n21
      & sum(n25,n28) = n22
      & sum(n25,n29) = n23
      & sum(n25,n30) = n24
      & sum(n26,n0) = n26
      & sum(n26,n1) = n27
      & sum(n26,n2) = n28
      & sum(n26,n3) = n29
      & sum(n26,n4) = n30
      & sum(n26,n5) = n0
      & sum(n26,n6) = n1
      & sum(n26,n7) = n2
      & sum(n26,n8) = n3
      & sum(n26,n9) = n4
      & sum(n26,n10) = n5
      & sum(n26,n11) = n6
      & sum(n26,n12) = n7
      & sum(n26,n13) = n8
      & sum(n26,n14) = n9
      & sum(n26,n15) = n10
      & sum(n26,n16) = n11
      & sum(n26,n17) = n12
      & sum(n26,n18) = n13
      & sum(n26,n19) = n14
      & sum(n26,n20) = n15
      & sum(n26,n21) = n16
      & sum(n26,n22) = n17
      & sum(n26,n23) = n18
      & sum(n26,n24) = n19
      & sum(n26,n25) = n20
      & sum(n26,n26) = n21
      & sum(n26,n27) = n22
      & sum(n26,n28) = n23
      & sum(n26,n29) = n24
      & sum(n26,n30) = n25
      & sum(n27,n0) = n27
      & sum(n27,n1) = n28
      & sum(n27,n2) = n29
      & sum(n27,n3) = n30
      & sum(n27,n4) = n0
      & sum(n27,n5) = n1
      & sum(n27,n6) = n2
      & sum(n27,n7) = n3
      & sum(n27,n8) = n4
      & sum(n27,n9) = n5
      & sum(n27,n10) = n6
      & sum(n27,n11) = n7
      & sum(n27,n12) = n8
      & sum(n27,n13) = n9
      & sum(n27,n14) = n10
      & sum(n27,n15) = n11
      & sum(n27,n16) = n12
      & sum(n27,n17) = n13
      & sum(n27,n18) = n14
      & sum(n27,n19) = n15
      & sum(n27,n20) = n16
      & sum(n27,n21) = n17
      & sum(n27,n22) = n18
      & sum(n27,n23) = n19
      & sum(n27,n24) = n20
      & sum(n27,n25) = n21
      & sum(n27,n26) = n22
      & sum(n27,n27) = n23
      & sum(n27,n28) = n24
      & sum(n27,n29) = n25
      & sum(n27,n30) = n26
      & sum(n28,n0) = n28
      & sum(n28,n1) = n29
      & sum(n28,n2) = n30
      & sum(n28,n3) = n0
      & sum(n28,n4) = n1
      & sum(n28,n5) = n2
      & sum(n28,n6) = n3
      & sum(n28,n7) = n4
      & sum(n28,n8) = n5
      & sum(n28,n9) = n6
      & sum(n28,n10) = n7
      & sum(n28,n11) = n8
      & sum(n28,n12) = n9
      & sum(n28,n13) = n10
      & sum(n28,n14) = n11
      & sum(n28,n15) = n12
      & sum(n28,n16) = n13
      & sum(n28,n17) = n14
      & sum(n28,n18) = n15
      & sum(n28,n19) = n16
      & sum(n28,n20) = n17
      & sum(n28,n21) = n18
      & sum(n28,n22) = n19
      & sum(n28,n23) = n20
      & sum(n28,n24) = n21
      & sum(n28,n25) = n22
      & sum(n28,n26) = n23
      & sum(n28,n27) = n24
      & sum(n28,n28) = n25
      & sum(n28,n29) = n26
      & sum(n28,n30) = n27
      & sum(n29,n0) = n29
      & sum(n29,n1) = n30
      & sum(n29,n2) = n0
      & sum(n29,n3) = n1
      & sum(n29,n4) = n2
      & sum(n29,n5) = n3
      & sum(n29,n6) = n4
      & sum(n29,n7) = n5
      & sum(n29,n8) = n6
      & sum(n29,n9) = n7
      & sum(n29,n10) = n8
      & sum(n29,n11) = n9
      & sum(n29,n12) = n10
      & sum(n29,n13) = n11
      & sum(n29,n14) = n12
      & sum(n29,n15) = n13
      & sum(n29,n16) = n14
      & sum(n29,n17) = n15
      & sum(n29,n18) = n16
      & sum(n29,n19) = n17
      & sum(n29,n20) = n18
      & sum(n29,n21) = n19
      & sum(n29,n22) = n20
      & sum(n29,n23) = n21
      & sum(n29,n24) = n22
      & sum(n29,n25) = n23
      & sum(n29,n26) = n24
      & sum(n29,n27) = n25
      & sum(n29,n28) = n26
      & sum(n29,n29) = n27
      & sum(n29,n30) = n28
      & sum(n30,n0) = n30
      & sum(n30,n1) = n0
      & sum(n30,n2) = n1
      & sum(n30,n3) = n2
      & sum(n30,n4) = n3
      & sum(n30,n5) = n4
      & sum(n30,n6) = n5
      & sum(n30,n7) = n6
      & sum(n30,n8) = n7
      & sum(n30,n9) = n8
      & sum(n30,n10) = n9
      & sum(n30,n11) = n10
      & sum(n30,n12) = n11
      & sum(n30,n13) = n12
      & sum(n30,n14) = n13
      & sum(n30,n15) = n14
      & sum(n30,n16) = n15
      & sum(n30,n17) = n16
      & sum(n30,n18) = n17
      & sum(n30,n19) = n18
      & sum(n30,n20) = n19
      & sum(n30,n21) = n20
      & sum(n30,n22) = n21
      & sum(n30,n23) = n22
      & sum(n30,n24) = n23
      & sum(n30,n25) = n24
      & sum(n30,n26) = n25
      & sum(n30,n27) = n26
      & sum(n30,n28) = n27
      & sum(n30,n29) = n28
      & sum(n30,n30) = n29
      & ( X = n0
        | X = n1
        | X = n2
        | X = n3
        | X = n4
        | X = n5
        | X = n6
        | X = n7
        | X = n8
        | X = n9
        | X = n10
        | X = n11
        | X = n12
        | X = n13
        | X = n14
        | X = n15
        | X = n16
        | X = n17
        | X = n18
        | X = n19
        | X = n20
        | X = n21
        | X = n22
        | X = n23
        | X = n24
        | X = n25
        | X = n26
        | X = n27
        | X = n28
        | X = n29
        | X = n30 )
      & ( Y = n0
        | Y = n1
        | Y = n2
        | Y = n3
        | Y = n4
        | Y = n5
        | Y = n6
        | Y = n7
        | Y = n8
        | Y = n9
        | Y = n10
        | Y = n11
        | Y = n12
        | Y = n13
        | Y = n14
        | Y = n15
        | Y = n16
        | Y = n17
        | Y = n18
        | Y = n19
        | Y = n20
        | Y = n21
        | Y = n22
        | Y = n23
        | Y = n24
        | Y = n25
        | Y = n26
        | Y = n27
        | Y = n28
        | Y = n29
        | Y = n30 )
      & sum(sum(pred(X),succ(Y)),sum(pred(Y),succ(X))) != sum(sum(pred(X),succ(X)),sum(pred(Y),succ(Y)))
      & n0 != n1
      & n0 != n2
      & n0 != n3
      & n0 != n4
      & n0 != n5
      & n0 != n6
      & n0 != n7
      & n0 != n8
      & n0 != n9
      & n0 != n10
      & n0 != n11
      & n0 != n12
      & n0 != n13
      & n0 != n14
      & n0 != n15
      & n0 != n16
      & n0 != n17
      & n0 != n18
      & n0 != n19
      & n0 != n20
      & n0 != n21
      & n0 != n22
      & n0 != n23
      & n0 != n24
      & n0 != n25
      & n0 != n26
      & n0 != n27
      & n0 != n28
      & n0 != n29
      & n0 != n30
      & n1 != n2
      & n1 != n3
      & n1 != n4
      & n1 != n5
      & n1 != n6
      & n1 != n7
      & n1 != n8
      & n1 != n9
      & n1 != n10
      & n1 != n11
      & n1 != n12
      & n1 != n13
      & n1 != n14
      & n1 != n15
      & n1 != n16
      & n1 != n17
      & n1 != n18
      & n1 != n19
      & n1 != n20
      & n1 != n21
      & n1 != n22
      & n1 != n23
      & n1 != n24
      & n1 != n25
      & n1 != n26
      & n1 != n27
      & n1 != n28
      & n1 != n29
      & n1 != n30
      & n2 != n3
      & n2 != n4
      & n2 != n5
      & n2 != n6
      & n2 != n7
      & n2 != n8
      & n2 != n9
      & n2 != n10
      & n2 != n11
      & n2 != n12
      & n2 != n13
      & n2 != n14
      & n2 != n15
      & n2 != n16
      & n2 != n17
      & n2 != n18
      & n2 != n19
      & n2 != n20
      & n2 != n21
      & n2 != n22
      & n2 != n23
      & n2 != n24
      & n2 != n25
      & n2 != n26
      & n2 != n27
      & n2 != n28
      & n2 != n29
      & n2 != n30
      & n3 != n4
      & n3 != n5
      & n3 != n6
      & n3 != n7
      & n3 != n8
      & n3 != n9
      & n3 != n10
      & n3 != n11
      & n3 != n12
      & n3 != n13
      & n3 != n14
      & n3 != n15
      & n3 != n16
      & n3 != n17
      & n3 != n18
      & n3 != n19
      & n3 != n20
      & n3 != n21
      & n3 != n22
      & n3 != n23
      & n3 != n24
      & n3 != n25
      & n3 != n26
      & n3 != n27
      & n3 != n28
      & n3 != n29
      & n3 != n30
      & n4 != n5
      & n4 != n6
      & n4 != n7
      & n4 != n8
      & n4 != n9
      & n4 != n10
      & n4 != n11
      & n4 != n12
      & n4 != n13
      & n4 != n14
      & n4 != n15
      & n4 != n16
      & n4 != n17
      & n4 != n18
      & n4 != n19
      & n4 != n20
      & n4 != n21
      & n4 != n22
      & n4 != n23
      & n4 != n24
      & n4 != n25
      & n4 != n26
      & n4 != n27
      & n4 != n28
      & n4 != n29
      & n4 != n30
      & n5 != n6
      & n5 != n7
      & n5 != n8
      & n5 != n9
      & n5 != n10
      & n5 != n11
      & n5 != n12
      & n5 != n13
      & n5 != n14
      & n5 != n15
      & n5 != n16
      & n5 != n17
      & n5 != n18
      & n5 != n19
      & n5 != n20
      & n5 != n21
      & n5 != n22
      & n5 != n23
      & n5 != n24
      & n5 != n25
      & n5 != n26
      & n5 != n27
      & n5 != n28
      & n5 != n29
      & n5 != n30
      & n6 != n7
      & n6 != n8
      & n6 != n9
      & n6 != n10
      & n6 != n11
      & n6 != n12
      & n6 != n13
      & n6 != n14
      & n6 != n15
      & n6 != n16
      & n6 != n17
      & n6 != n18
      & n6 != n19
      & n6 != n20
      & n6 != n21
      & n6 != n22
      & n6 != n23
      & n6 != n24
      & n6 != n25
      & n6 != n26
      & n6 != n27
      & n6 != n28
      & n6 != n29
      & n6 != n30
      & n7 != n8
      & n7 != n9
      & n7 != n10
      & n7 != n11
      & n7 != n12
      & n7 != n13
      & n7 != n14
      & n7 != n15
      & n7 != n16
      & n7 != n17
      & n7 != n18
      & n7 != n19
      & n7 != n20
      & n7 != n21
      & n7 != n22
      & n7 != n23
      & n7 != n24
      & n7 != n25
      & n7 != n26
      & n7 != n27
      & n7 != n28
      & n7 != n29
      & n7 != n30
      & n8 != n9
      & n8 != n10
      & n8 != n11
      & n8 != n12
      & n8 != n13
      & n8 != n14
      & n8 != n15
      & n8 != n16
      & n8 != n17
      & n8 != n18
      & n8 != n19
      & n8 != n20
      & n8 != n21
      & n8 != n22
      & n8 != n23
      & n8 != n24
      & n8 != n25
      & n8 != n26
      & n8 != n27
      & n8 != n28
      & n8 != n29
      & n8 != n30
      & n9 != n10
      & n9 != n11
      & n9 != n12
      & n9 != n13
      & n9 != n14
      & n9 != n15
      & n9 != n16
      & n9 != n17
      & n9 != n18
      & n9 != n19
      & n9 != n20
      & n9 != n21
      & n9 != n22
      & n9 != n23
      & n9 != n24
      & n9 != n25
      & n9 != n26
      & n9 != n27
      & n9 != n28
      & n9 != n29
      & n9 != n30
      & n10 != n11
      & n10 != n12
      & n10 != n13
      & n10 != n14
      & n10 != n15
      & n10 != n16
      & n10 != n17
      & n10 != n18
      & n10 != n19
      & n10 != n20
      & n10 != n21
      & n10 != n22
      & n10 != n23
      & n10 != n24
      & n10 != n25
      & n10 != n26
      & n10 != n27
      & n10 != n28
      & n10 != n29
      & n10 != n30
      & n11 != n12
      & n11 != n13
      & n11 != n14
      & n11 != n15
      & n11 != n16
      & n11 != n17
      & n11 != n18
      & n11 != n19
      & n11 != n20
      & n11 != n21
      & n11 != n22
      & n11 != n23
      & n11 != n24
      & n11 != n25
      & n11 != n26
      & n11 != n27
      & n11 != n28
      & n11 != n29
      & n11 != n30
      & n12 != n13
      & n12 != n14
      & n12 != n15
      & n12 != n16
      & n12 != n17
      & n12 != n18
      & n12 != n19
      & n12 != n20
      & n12 != n21
      & n12 != n22
      & n12 != n23
      & n12 != n24
      & n12 != n25
      & n12 != n26
      & n12 != n27
      & n12 != n28
      & n12 != n29
      & n12 != n30
      & n13 != n14
      & n13 != n15
      & n13 != n16
      & n13 != n17
      & n13 != n18
      & n13 != n19
      & n13 != n20
      & n13 != n21
      & n13 != n22
      & n13 != n23
      & n13 != n24
      & n13 != n25
      & n13 != n26
      & n13 != n27
      & n13 != n28
      & n13 != n29
      & n13 != n30
      & n14 != n15
      & n14 != n16
      & n14 != n17
      & n14 != n18
      & n14 != n19
      & n14 != n20
      & n14 != n21
      & n14 != n22
      & n14 != n23
      & n14 != n24
      & n14 != n25
      & n14 != n26
      & n14 != n27
      & n14 != n28
      & n14 != n29
      & n14 != n30
      & n15 != n16
      & n15 != n17
      & n15 != n18
      & n15 != n19
      & n15 != n20
      & n15 != n21
      & n15 != n22
      & n15 != n23
      & n15 != n24
      & n15 != n25
      & n15 != n26
      & n15 != n27
      & n15 != n28
      & n15 != n29
      & n15 != n30
      & n16 != n17
      & n16 != n18
      & n16 != n19
      & n16 != n20
      & n16 != n21
      & n16 != n22
      & n16 != n23
      & n16 != n24
      & n16 != n25
      & n16 != n26
      & n16 != n27
      & n16 != n28
      & n16 != n29
      & n16 != n30
      & n17 != n18
      & n17 != n19
      & n17 != n20
      & n17 != n21
      & n17 != n22
      & n17 != n23
      & n17 != n24
      & n17 != n25
      & n17 != n26
      & n17 != n27
      & n17 != n28
      & n17 != n29
      & n17 != n30
      & n18 != n19
      & n18 != n20
      & n18 != n21
      & n18 != n22
      & n18 != n23
      & n18 != n24
      & n18 != n25
      & n18 != n26
      & n18 != n27
      & n18 != n28
      & n18 != n29
      & n18 != n30
      & n19 != n20
      & n19 != n21
      & n19 != n22
      & n19 != n23
      & n19 != n24
      & n19 != n25
      & n19 != n26
      & n19 != n27
      & n19 != n28
      & n19 != n29
      & n19 != n30
      & n20 != n21
      & n20 != n22
      & n20 != n23
      & n20 != n24
      & n20 != n25
      & n20 != n26
      & n20 != n27
      & n20 != n28
      & n20 != n29
      & n20 != n30
      & n21 != n22
      & n21 != n23
      & n21 != n24
      & n21 != n25
      & n21 != n26
      & n21 != n27
      & n21 != n28
      & n21 != n29
      & n21 != n30
      & n22 != n23
      & n22 != n24
      & n22 != n25
      & n22 != n26
      & n22 != n27
      & n22 != n28
      & n22 != n29
      & n22 != n30
      & n23 != n24
      & n23 != n25
      & n23 != n26
      & n23 != n27
      & n23 != n28
      & n23 != n29
      & n23 != n30
      & n24 != n25
      & n24 != n26
      & n24 != n27
      & n24 != n28
      & n24 != n29
      & n24 != n30
      & n25 != n26
      & n25 != n27
      & n25 != n28
      & n25 != n29
      & n25 != n30
      & n26 != n27
      & n26 != n28
      & n26 != n29
      & n26 != n30
      & n27 != n28
      & n27 != n29
      & n27 != n30
      & n28 != n29
      & n28 != n30
      & n29 != n30 ) ).