杭电acm1090 A+B for Input-Output Practice (II)

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