#include <cstdio>
#include <cctype>
#define il inline
#define rgi register int
int n;
il int read()
{
rgi x = 0, f = 0, ch;
while(!isdigit(ch = getchar())) f |= ch == '-';
while(isdigit(ch)) x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar();
return f ? -x : x;
}
int main()
{
n = read();
for(rgi i = 1; i <= n; ++i)
{
int a = read(), b = read();
printf("%d\n", a + b);
}
return 0;
}