Backpacking

#include <string>

using namespace std;

int main(int argc, char* argv[])
{
    if(argc == 3)
    {
        string a = argv[1];
        string b = argv[2];
        int64_t ia = stoi(a);
        int64_t ib = stoi(b);
        int64_t sum = ia + ib;
        printf("%ld\n", sum);
        if((ia >= 0 && ia <= 1000000) && (ib >= 0 && ib <= 1000000))
        {
            return sum;
        }
    }
}

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER