#include <cstdio>


using namespace std;

int n, m, x;

void read()
{
    freopen("diamant.in", "r", stdin);
    freopen("diamant.out", "w", stdout);


    scanf("%i %i %i ", &n, &m, &x);
}

int main()
{
    printf("0\n");
    return 0;
}