#include<iostream>
#include<algorithm>
#include<stack>
#include<vector>

using namespace std;
using ll = long long;

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    
    ll a,b,c,d;
    cin>>a>>b>>c>>d;
    cout<<a*c-b*d<<" "<<a*d+b*c<<endl;
}