#include <bits/stdc++.h>
using namespace std;

int main()
{
    long long A, B, C, D;
    cin >> A >> B >> C >> D;
    long long N, M;
    N = A*C - B*D;
    M = A*D + B*C;
    cout << N << " " << M << endl;
    return 0;
}