I make matrices from the sequence of Catalan numbers 1,2,5,14,42,132,429,1430,4862,... Such matrices satisfy all criterion: 1)All numbers are positive integers 2) Determinants of all matrices are equal to 1 But I get WA2

In the problem description we know that all output should be positive integers.But I submit a solution which contains '0' but it got accepted.I think the Check Program has something wrong.