hdoj1089

Input
The input will consist of a series of pairs of integers a and b, separated by a space, one pair of integers per line.



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

Sample Output

6
30  【正确答案】#include <stdio.h>
int main()
{
 int a,b;
 while(scanf("%d%d",&a,&b)!=EOF)
 {
  printf("%d\n",a+b);
 }
 return 0;
}【分析】未知运行次数用while语句