#include <cstdio>
#include <iostream>
#include <cmath>
using namespace std;

int main()
{
    double a,b,c,d,e;
    cin >> a>>b>>c;
    d=b*b-4*a*c;
    if(a==0||d<0)
    {
        cout<<"Impossivel calcular";
    }
    else
    {
        printf("R1 = %.5lf\n",(-1*b+sqrt(d))/(2*a));
        printf("R2 = %.5lf\n",(-1*b-sqrt(d))/(2*a));
    }
    return 0;
}