I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.

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2021/06/18 22:05:27

2021/06/18 22:05:27

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I have a very simple problem for you. Given two integers A and B, your job is to calculate the Sum of A + B.

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.

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.

```
2
1 2
112233445566778899 998877665544332211
```

```
Case 1:
1 + 2 = 3
Case 2:
112233445566778899 + 998877665544332211 = 1111111111111111110
```

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