A + B Problem

Problem Description

Calculate A + B.

Input

Each line will contain two integers A and B. Process to end of file.

Output

For each case, output A + B in one line.

Sample Input

1 1

Sample Output

2

#include<stdio.h>
#include<stdlib.h>
int main()
{
      int a,b;
      while(scanf("%d%d",&a,&b)!=EOF)//直到遇到EOF才停止输入
      printf("%d\n",a+b);//输出a+b
return 0;
}