#include<iostream>
#include<vector>
#include<algorithm>
#include<cmath>
using namespace std;
int A,B,C;
double a,b,c;
main()
{
	cin>>A>>B>>C;
	int D=B*B-4*A*C;
	vector<double>ans;
	a=A;
	b=B;
	c=C;
	if(D<0);
	else if(D==0)
	{
		ans.push_back(-b/2/a);
	}
	else
	{
		double d=sqrt(D),x;
		if(b>0)x=(-b-d)/2/a;
		else x=(-b+d)/2/a;
		ans.push_back(x);
		ans.push_back(-b/a-x);
		sort(ans.begin(),ans.end());
	}
	if(ans.empty())cout<<"imaginary"<<endl;
	else for(int i=0;i<ans.size();i++)cout<<ans[i]<<(i+1==ans.size()?"\n":" ");
}