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
630
#include <stdio.h> int main() { int a,b; while(scanf("%d%d",&a,&b)!=EOF) printf("%d\n\n",a+b); return 0; }