URI 1036

#include <stdio.h>


int main()
// Testa as entradas : 10.0 20.1 5.1
{
    float a, b, c, R1, R2, delta;
    scanf("%f %f %f", &a, &b, &c);
    delta = (b*b) - (4*a*c);
    R1 = ((-b + sqrt(delta))/2*a);
    R2 = ((-b - sqrt(delta))/2*a);

        if ((a!=0) && (delta>=0))
            {
                printf("R1 = %.05lf\nR2 = %.05lf", R1, R2);
            }

        else
            {
                printf("Impossivel calcular");
            }




    return 0;
}