#include<bits/stdc++.h>
using namespace std;
int main()
{
int A,B;
while(scanf("%d%d",&A,&B)==2)
printf("%d\n",A+B);
return 0;
}
#include<bits/stdc++.h>
using namespace std;
int main()
{
int A,B;
while(scanf("%d%d",&A,&B)==2)
printf("%d\n",A+B);
return 0;
}