#include <iostream>
#include <cmath>
#include <string>
#include <algorithm>

using namespace std;


int main()
{
    int a, b, c, d;
    cin >> a >> b >> c >> d;


    for (int x = -100; x <= 100; ++x) {
        int x2 = x*x, x3 = x2*x;
        if (a*x3*1LL + b*x2*1LL + c*x*1LL + d == 0) cout << x << " ";
    }



    return 0;
}