#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)

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