#include <iostream>
using namespace std;
double a,b,c,d;
double f(double x)
{
	return x * x * x * a + x * x * b + x * c + d;
}


int main()
{
	cin >> a >> b >> c >> d;
	double x1, x2, xx;
	for(double x = -100; x <= 100; ++x)
	{
		x1 = x, x2 = x + 1;
		if(f(x1) == 0) printf("%.2f ", x1);
		else if(f(x1) * f(x2) < 0)
		{
		while(x2 - x1 >= 0.001)
		{
		xx = (x2 + x1) / 2;
		if(f(x1) * f(xx) <= 0)
		x2 = xx;
		else
		x1 = xx;
		}
		printf("%.2f ", x1);
	}
	}
	return 0;
}