#include <bits/stdc++.h>
using namespace std;
double a,b,c,x1,x2,delta;
int main()
{
	cin>>a>>b>>c;
	delta = b*b-4*a*c;
	if (delta < 0)	printf("No answer!");
	x1=(-b+sqrt(delta))/(2.0*a);
	x2=(-b-sqrt(delta))/(2.0*a);
	if (x1 > x2)	swap(x1, x2);
	if (delta == 0)	printf("x1=x2=%.5lf", x1);
	else	printf("x1=%.5lf;x2=%.5lf", x1, x2);
	return 0;
}