#include <cstdio>
#include <cmath>
int main()
{
double a, b, c;
scanf("%lf%lf%lf", &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, x2;
x1 = (-b + delta) / (2 * a);
x2 = (-b - delta) / (2 * a);
printf("R1 = %.5lf\n", x1);
printf("R2 = %.5lf\n", x2);
}
return 0;
}