#include <stdio.h>
#include <math.h>


int main() 
{
	float a;
	float b;
	float c;
	float d;
	float r1;
	float r2;
	
	scanf("%f %f %f ", &a, &b, &c);
	
	d = b*b - 4*a*c;
	
	if(d > 0)
	{
		r1 = (-b + sqrt(d)) / (2*a);
		r2 = (-b - sqrt(d)) / (2*a);
	
		printf("roots are real and distinct\n");
		printf("%.2f %.2f", r1, r2);
	}
	else if (d == 0)
	{
		r1 = -b / (2*a);
		
		printf("roots are real and equal\n");
		printf("%.2f %.2f", r1, r1);
	}
	else
	{
		printf("roots are complex");
	}
	return 0;
}