#include<cstdio>
#define Inline __inline__ __attribute__((always_inline))
//using namespace std;
//Inline char to_upper(char a) {return (a >= 'a' && a <= 'z') ? a ^ ' ' : a;}
int n, a, b;
int sum(int a, int b) {
return a + b;
}
int main( ) {
scanf("%d", &n);
while(n--) {
scanf("%d %d", &a, &b);
printf("%d\n", sum(a, b));
}
return 0;
}