#include <stdio.h>

int sum(int * arr)
{
    int s;
    for (s = 0; *arr != 0; arr++)
    {
        s += *arr;
    }
    return s;
}

int main(int argc, char * argv[])
{
    int a[] = {5, 6, 7, 0};
    int b[] = {10, 20, -500, 0};
    printf("%d;%d\n", sum(a), sum(b));
    return 0;
}