#include<bits/stdc++.h>
using namespace std;
inline int read()
{
int num=0,fl=1;
char ch=getchar();
while(!isdigit(ch)){if(ch=='-')fl=-1;ch=getchar();}
while(isdigit(ch)){num=num*10+ch-'0';ch=getchar();}
return num*fl;
}
int main()
{
int n=read();
int a,b;
for (int i = 1; i <= n; i++)
a=read(),b=read(),printf("%d\n",a+b);
return 0;
}