#include<iostream>
#include<cstdio>
#include<math.h>
using namespace std;
int main(){
	freopen("3cfc.in","r",stdin);   //打开读入文件 
	freopen("3cfc.out","w",stdout); //打开输出文件 
	double a,b,c,d,x,gen[3],tmp[3],top,z,sta;
	int i=0,j=0;
	cin>>a>>b>>c>>d;
	for(x=-100;x<=100;x+=0.01)
	{
		if(a*x*x*x+b*x*x+c*x+d==0)
		{
			gen[i]=x;i++;x++;
		}
		else
		{
			double y=x+0.01;
			if((a*x*x*x+b*x*x+c*x+d)*(a*y*y*y+b*y*y+c*y+d)<0)
			{
				tmp[j]=x;j++;x++;
			}
		}
	}
	if(i==3)
	{
		for(i=0;i<=2;i++)
		{
			cout<<gen[i]<<" ";
		}
	}
	else
	{
		for(j=0;j<=2-i;j++)
		{
			sta=tmp[j];
			for(top=tmp[j]+0.01;tmp[j]<=top;tmp[j]+=0.001)
			{
				z=tmp[j]+0.001;y=tmp[j];
				if((a*y*y*y+b*y*y+c*y+d)*(a*z*z*z+b*z*z+c*z+d)<0)
				{
					if(y<sta+0.005) gen[i]=sta;
					else gen[i]=sta+0.01;
					i++;
				}
			}
		}
		for(i=0;i<=2;i++)
		{
			cout<<gen[i]<<" ";
		}
	}
	
	return 0;
}