mike-is-a-very-passionate-about-sets-lately-he-is-busy-solving-one-of-the-problems-on-sets-he-has-to-find-whether-if-the-sum-of-any-of-the-non-empty-subsets-of-the-set-a-is-zero-input-format-the-first-line-contains-an-integer-t-which-is-the-total-number-o