#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using ll = long long;
#define rep(i,n) for(int i=0;i<(int)(n);i++)

int main(){
	ll a,b,c,d;
	cin>>a>>b>>c>>d;
	cout<<a*c-b*d<<" "<<a*d+b*c<<endl;
}