编程题：sdut-C语言实验- A+B for Input-Output Practice (VII)
Your task is to Calculate a + b.
### 输入格式:
The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.
### 输出格式:
For each pair of input integers a and b you should output the sum of a and b, and followed by a blank line.。
### 输入样例:
in
1 5
10 20
### 输出样例:
在这里给出相应的输出。例如：
out
6
30
答案：若无答案欢迎评论
### 输入格式:
The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.
### 输出格式:
For each pair of input integers a and b you should output the sum of a and b, and followed by a blank line.。
### 输入样例:
in
1 5
10 20
### 输出样例:
在这里给出相应的输出。例如：
out
6
30
答案：若无答案欢迎评论
