#include <stdio.h>

void sum(int x,int y)
{
    printf("%d\n",x+y);
}

int main() 
{
    int n;
    scanf("%d",&n);
    for(int i = 1;i <= n;i++)
    {
    int a,b;
    scanf("%d %d",&a,&b);
    sum(a,b);
    }

    return 0;
}