Backpacking

#include <cstdint>
#include <stdio.h>
#include <stdlib.h>

int main() {
    uint64_t a = 0;
    uint64_t b = 0;
    if (scanf("%ld %ld", &a, &b) == 0)
        return EXIT_FAILURE;
    printf("%ld", a + b);
    return EXIT_SUCCESS;
}

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED