The first line has a number T (T <= 10000) , indicating the number of test cases.
For each test case, there are two numbers A and B (0 <= A,B < 109)
For every case,you should output "Case #t: " at first, without quotes. The t is the case number starting from 1. Then output the answer.
Case #1: 1
Case #2: 2
Case #3: 13