#include <stdio.h>
#include <math.h>
int main()
{
    double a,b,c,D,R1,R2; //* D = delta
    scanf("%lf %lf %lf", &a,&b,&c);
    D = (b*b) - 4*a*c;
    if (2*a==0 || D<0)
    {
        printf("Impossivel calcular");
    } else
    {
        R1 = (-b + sqrt(D))/2*a;
        R2 = (-b - sqrt(D))/2*a;

    }
    printf("R1 = %.5lf\n",R1);
    printf("R2 = %.5lf\n",R2);
    return 0;
}