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 in one line,and with one line of output for each line in input.

Sample Input

1 5

Sample Output

6

Code(gcc 4.7.2)

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