#include <stdio.h>
#include<math.h>
int main(){

	double a,b,c;
	scanf("%lf %lf %lf",&a,&b,&c);
	double A=b*b-4*a*c;
	double x1=(-b+sqrt(A))/(2*a);
	double x2=(-b-sqrt(A))/(2*a);
	if(A<0){
		printf("No answer!");
	}else if(A>0){
		if(x2>x1){
			printf("x1=%.5lf;x2=%.5lf",x1,x2);
		
		}else{
			printf("x2=%.5lf x1=%.5lf",x2,x1);
		}	
	} else{
		printf("x1=x2=%.5lf",x1);
	}

	return 0;

}