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var 0..64: INT____00001 :: is_defined_var :: var_is_introduced;
var 0..64: obj :: output_var = INT____00001;
array [1..64] of var 0..1: x :: output_array([1..8, 1..8]);
constraint int_lin_eq([-1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1], [INT____00001, x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11], x[12], x[13], x[14], x[15], x[16], x[17], x[18], x[19], x[20], x[21], x[22], x[23], x[24], x[25], x[26], x[27], x[28], x[29], x[30], x[31], x[32], x[33], x[34], x[35], x[36], x[37], x[38], x[39], x[40], x[41], x[42], x[43], x[44], x[45], x[46], x[47], x[48], x[49], x[50], x[51], x[52], x[53], x[54], x[55], x[56], x[57], x[58], x[59], x[60], x[61], x[62], x[63], x[64]], 0) :: defines_var(INT____00001);
constraint int_lin_le([1, 1], [x[2], x[9]], 1);
constraint int_lin_le([1, 1], [x[7], x[16]], 1);
constraint int_lin_le([1, 1], [x[49], x[58]], 1);
constraint int_lin_le([1, 1], [x[56], x[63]], 1);
constraint int_lin_le([1, 1, 1], [x[3], x[10], x[17]], 1);
constraint int_lin_le([1, 1, 1], [x[6], x[15], x[24]], 1);
constraint int_lin_le([1, 1, 1], [x[41], x[50], x[59]], 1);
constraint int_lin_le([1, 1, 1], [x[48], x[55], x[62]], 1);
constraint int_lin_le([1, 1, 1, 1], [x[4], x[11], x[18], x[25]], 1);
constraint int_lin_le([1, 1, 1, 1], [x[5], x[14], x[23], x[32]], 1);
constraint int_lin_le([1, 1, 1, 1], [x[33], x[42], x[51], x[60]], 1);
constraint int_lin_le([1, 1, 1, 1], [x[40], x[47], x[54], x[61]], 1);
constraint int_lin_le([1, 1, 1, 1, 1], [x[4], x[13], x[22], x[31], x[40]], 1);
constraint int_lin_le([1, 1, 1, 1, 1], [x[5], x[12], x[19], x[26], x[33]], 1);
constraint int_lin_le([1, 1, 1, 1, 1], [x[25], x[34], x[43], x[52], x[61]], 1);
constraint int_lin_le([1, 1, 1, 1, 1], [x[32], x[39], x[46], x[53], x[60]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1], [x[3], x[12], x[21], x[30], x[39], x[48]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1], [x[6], x[13], x[20], x[27], x[34], x[41]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1], [x[17], x[26], x[35], x[44], x[53], x[62]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1], [x[24], x[31], x[38], x[45], x[52], x[59]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1], [x[2], x[11], x[20], x[29], x[38], x[47], x[56]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1], [x[7], x[14], x[21], x[28], x[35], x[42], x[49]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1], [x[9], x[18], x[27], x[36], x[45], x[54], x[63]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1], [x[16], x[23], x[30], x[37], x[44], x[51], x[58]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[1], x[9], x[17], x[25], x[33], x[41], x[49], x[57]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[1], x[10], x[19], x[28], x[37], x[46], x[55], x[64]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[2], x[10], x[18], x[26], x[34], x[42], x[50], x[58]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[3], x[11], x[19], x[27], x[35], x[43], x[51], x[59]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[4], x[12], x[20], x[28], x[36], x[44], x[52], x[60]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[5], x[13], x[21], x[29], x[37], x[45], x[53], x[61]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[6], x[14], x[22], x[30], x[38], x[46], x[54], x[62]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[7], x[15], x[23], x[31], x[39], x[47], x[55], x[63]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[8], x[15], x[22], x[29], x[36], x[43], x[50], x[57]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[8], x[16], x[24], x[32], x[40], x[48], x[56], x[64]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[9], x[10], x[11], x[12], x[13], x[14], x[15], x[16]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[17], x[18], x[19], x[20], x[21], x[22], x[23], x[24]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[25], x[26], x[27], x[28], x[29], x[30], x[31], x[32]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[33], x[34], x[35], x[36], x[37], x[38], x[39], x[40]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[41], x[42], x[43], x[44], x[45], x[46], x[47], x[48]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[49], x[50], x[51], x[52], x[53], x[54], x[55], x[56]], 1);
constraint int_lin_le([1, 1, 1, 1, 1, 1, 1, 1], [x[57], x[58], x[59], x[60], x[61], x[62], x[63], x[64]], 1);
solve  :: int_search([x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8], x[9], x[10], x[11], x[12], x[13], x[14], x[15], x[16], x[17], x[18], x[19], x[20], x[21], x[22], x[23], x[24], x[25], x[26], x[27], x[28], x[29], x[30], x[31], x[32], x[33], x[34], x[35], x[36], x[37], x[38], x[39], x[40], x[41], x[42], x[43], x[44], x[45], x[46], x[47], x[48], x[49], x[50], x[51], x[52], x[53], x[54], x[55], x[56], x[57], x[58], x[59], x[60], x[61], x[62], x[63], x[64], INT____00001], first_fail, indomain, complete) maximize INT____00001;