#include <iostream>
#include <cmath>
#include <cstdio>

using namespace std;

int main()
{
    double a,b,c;
    cin>>a>>b>>c;
    if (b*b-4*a*c<0 || a==0) 
    {
        cout<<"Impossivel calcular"<<endl;
    }
    else
    {
        printf("R1 = %.5lf\n",(-b+sqrt(b*b-4*a*c))/(2*a));
        printf("R2 = %.5lf\n",(-b-sqrt(b*b-4*a*c))/(2*a));
    }
    return 0;
}