#include<bits/stdc++.h>
inline int r(){
int n=0,f=1;char c=getchar_unlocked();
while(c>'9'||c<'0'){if(c=='-')f=-1;c=getchar_unlocked();}
while(c>='0'&&c<='9'){n=n*10+c-'0';c=getchar_unlocked();}
return n*f;
}
int main(){
int n=r();
for(register int i=1;i<=n;++i){
int a=r(),b=r();
printf("%d\n",a+b);
}
return 0;
}