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