#include<cstdio>
#include<iostream>
#include<cmath>
using namespace std;
int main()
{
double a,b,c;
cin>>a>>b>>c;
double delta = b*b - 4*a*c;
if(delta<0||a==0) printf("Impossivel calcular\n");
else
{
delta = sqrt(delta);
double x1 =(-b+delta)/(2*a);
double x2 = (-b-delta)/(2*a);
printf("R1 = %.5lf\n",x1);
printf("R2 = %.5lf\n",x2);
}
return 0;
}