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
Sample Output
#include
int main()
{
int a,b;
while(~scanf("%d%d",&a,&b)) //或者scanf("%d%d",&a,&b)!=EOF
printf("%d\n",a+b);
}