#include<stdio.h>
#include<math.h>

int main()
{
    double a, b, c, x;
    scanf("%lf%lf%lf",&a, &b, &c);

    x = b * b - 4 * a * c;

    if(a == 0 || x < 0)
    {
        printf("Impossivel calcular");
    }
    else 
    {
        printf("R1 = %.5lf\n", (-1 * b + sqrt(x)) /( 2 * a));
        printf("R2 = %.5lf\n", (-1 * b - sqrt(x)) /( 2 * a));
    }


    return 0;
}