#include<iostream>
#include<vector>

using namespace std;

int main( void )
{
    long long A, B, C, D;
    cin >> A >> B >> C >> D;

    long long N = A * C - B * D;
    long long M = A * D + B * C;
    cout << N << " " << M << endl;
    

    return 0;
}