I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.
输入描述
The first line of the input contains an integer T(1<=T<=20) which means the number of test cases.
Then T lines follow, each line consists of two positive integers, A and B. Notice that the integers are very large,that means you should not process them by using 32-bit integer.You may assume the length of each integer will not exceed 1000.
输出描述
For each test case, you should output two lines. The first line is "Case #:", # means the number of the test case. The second line is the an equation "A + B = Sum", Sum means the result of A + B.Note there are some spaces int the equation. Output a blank line between two test cases.
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