A+B for Input-Output Practice (VII)

Problem Description

Your task is to Calculate a + b.

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, and followed by a blank line.

Sample Input

1  5

10 20

Sample Output

6

 

30

源代码：

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