#include <stdio.h>
int main() {
//for문
/*
for(int i=1;i<=10;i++){
printf("hello world! %d\n", i);
}
for(int i=10;i>=1;i--){
printf("hello world! %d\n", i);
}
*/
/* 구구단
int n;
scanf("%d", &n);
for(int i=1;i<10;i++){
printf("%d x %d = %d\n", n, i, n*i);
}
*/
int t, a, b;
scanf("%d", &t);
for(int i=1;i<=t;i++){
scanf("%d %d", &a, &b);
printf("%d\n", a+b);
}
}
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