遇到一诡异的acm题 如下：
For each pair of integers A B and C ( -2^31 <= A, B, C<= 2^31-1 ), Output the result of A+B+C on a single line. For each pair of integers A B
For each pair of integers A B and C ( -2^31 <= A, B, C<= 2^31-1 ), Output the result of A+B+C on a single line. For each pair of integers A B
