Backpacking

#include <stdio.h>

int main(void)
{
    int a,b,o;
    if (scanf("%d %d", &a, &b) == 2) {
        if (a >= 0 && b >= 0 && a <= 1000000 && b <= 1000000) {
            o = a+b;
            printf("%d",o);
        }
    }
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED