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..9] of var 1..52: x :: output_array([1..9]);
constraint int_lin_eq([-1, -1, -1, -1, -1, -1, -1, -1, -1], [x[1], x[2], x[3], x[4], x[5], x[6], x[7], x[8], x[9]], -52);
constraint int_lt(2, x[1]);
constraint int_lt(2, x[2]);
constraint int_lt(2, x[3]);
constraint int_lt(2, x[4]);
constraint int_lt(2, x[5]);
constraint int_lt(2, x[6]);
constraint int_lt(2, x[7]);
constraint int_lt(2, x[8]);
constraint int_lt(2, x[9]);
solve  :: int_search(x, max_regret, indomain_max, complete) satisfy;