predicate all_different_int(array [int] of var int: x);predicate count(array [int] of var int: x, var int: y, var int: c);predicate fixed_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, int: b);predicate global_cardinality(array [int] of var int: x, array [int] of int: cover, array [int] of var int: counts);predicate maximum_int(var int: m, array [int] of var int: x);predicate minimum_int(var int: m, array [int] of var int: x);predicate sliding_sum(int: low, int: up, int: seq, array [int] of var int: vs);predicate sort(array [int] of var int: x, array [int] of var int: y);predicate table_bool(array [int] of var bool: x, array [int, int] of bool: t);predicate table_int(array [int] of var int: x, array [int, int] of int: t);predicate var_cumulative(array [int] of var int: s, array [int] of int: d, array [int] of int: r, var int: b);array [1..36] of int: connections = [0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0];array [1..6] of var 1..4: country :: output_array([1..6]);constraint int_ne(country[1], country[3]);constraint int_ne(country[1], country[4]);constraint int_ne(country[1], country[5]);constraint int_ne(country[1], country[6]);constraint int_ne(country[2], country[4]);constraint int_ne(country[3], country[4]);constraint int_ne(country[3], country[5]);constraint int_ne(country[4], country[5]);constraint int_ne(country[4], country[6]);solve satisfy;