A+B的系列问题三

题目描述

Your task is to Calculate a + b.

输入

Input contains multiple test cases. Each test case contains a pair of integers a and b, one pair of integers per line. A test case containing 0 0 terminates the input and this test case is not to be processed. 

输出

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.

样例输入

1 5
10 20
0 0

样例输出

6
30

时间限制: 1 Sec 内存限制: 128 MB

代码实现：

#include<stdio.h>

int main()
{
    int a = 0;
    int b = 0;
    while((scanf("%d%d", &a, &b) != EOF), !((a == 0) && (b == 0)))
    {
        printf("%d\n", a + b);
    }
    return 0;
}