编程题：sdut-C语言实验-A+B for Input-Output Practice (Ⅳ)

Your task is to Calculate a + b.



### 输入格式:

Your task is to Calculate a + b.



### 输出格式:

For each pair of input integers a and b you should output the sum of a and b in one line, and with one line of output for each line in input.

### 输入样例:

在这里给出一组输入。例如：

in
2
1 5
10 20


### 输出样例:

在这里给出相应的输出。例如：

out
6
30







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