HDU1091-A+B for Input-Output Practice (III)

Problem Description

Your task is to Calculate a + b.

Input

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.
Output
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.
Sample Input
1 5
10 20
0 0
Sample Output
6

30

#include<stdio.h>int main(){int m,n,a,b;while(scanf("%d%d",&a,&b)!=EOF){if(a==0&&b==0){return 0;}else{m=a+b;}printf("%d\n",m);}return 0;}