#include <iostream>
#include <cmath>
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";
    else
    {
        double x1, x2;
        x1 = (- b + sqrt(b * b - 4 * a *c)) / (2.0 * a);
        x2 = (- b - sqrt(b * b - 4 * a *c)) / (2.0 * a);
        printf("R1 = %.5lf\n", x1);
        printf("R2 = %.5lf", x2);
    }
    return 0;
}