#include <bits/stdc++.h>
using namespace std;


double f(double a,double b,double c,double d,double x) 
{
    return a*x*x*x+b*x*x+c*x+d;
}

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

    
    set<double> r;

    
    
    for (double x=-100.00;x<=100.00;x+=0.01) 
    {
        
        if (abs(f(a,b,c,d,x))<1e-6) 
        {
            r.insert(x);
            
            if (r.size()==3) 
            {
                break;
            }
        }
    }

    
    for (double root:r) 
    {
        cout<<fixed<<setprecision(2)<<root<<" ";
    }

    return 0;
}