2013
11-28

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

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.

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.

1 5
10 20
0 0

6
30

AC源代码（C语言）：
#include<stdio.h>
int main()
{
int a,b;
while(scanf("%d%d",&a,&b)==2)
{
if(a==0&&b==0) break;
else printf("%d\n",a+b);
}
return 0;
}