#include<iostream>
using namespace std;
int main()
{
int a,b;
while(scanf("%d%d",&a,&b) !=EOF){
cout<<a+b<<endl;
}
return 0;
}
#include<iostream>
using namespace std;
int main()
{
int a,b;
while(scanf("%d%d",&a,&b) !=EOF){
cout<<a+b<<endl;
}
return 0;
}