#include<stdio.h>
int main() {
int a,b;
while(scanf("%d %d",&a,&b)!=EOF) {
printf("%d\n\n",a+b);
}
return 0;
}
#include<stdio.h>
int main() {
int a,b;
while(scanf("%d %d",&a,&b)!=EOF) {
printf("%d\n\n",a+b);
}
return 0;
}