#include <stdio.h>
#include <math.h>
int main()
{
	double a,b,c;
	scanf("%lf %lf %lf",&a,&b,&c);
	double t=b*b-4*a*c;
	double x1=(-b+sqrt(t))/(2*a);
	double x2=(-b-sqrt(t))/(2*a);
	while(t>=0){
		if(t==0)
			printf("x1=x2=%.5f",x1);
		else//t>0
		{
			if(x1<x2)
				printf("x1=%.5f;x2=%.5f",x1,x2);
			else//x2<x1
				printf("x1=%.5f;x2=%.5f",x2,x1);
		}
		return 0;
	}	
	printf("No answer!");
	return 0;
}