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