#include <bits/stdc++.h>

typedef long long ll;

using namespace std;

int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int a, b, n, m; cin >> a >> b >> n >> m;
    ll maa = a*(n+1) + n;
    ll mia = a*(n-1)+ n-1;
    ll mab = b*(m+1)+m;
    ll mib = b*(m-1) + b-1;
    if (maa < mib || mab < mia){
        cout << -1;
        return 0;
    }
    cout << max(mia, mib) << ' '<< min(maa, mab);
    return 0;
}