URI 1036

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

int main()
{
   double a,b,c,x1,x2,delta;

   scanf("%lf %lf %lf", &a,&b,&c);

    delta = (b*b) - 4*a*c;

   if ( a>0 && delta>0 ){

    x1 = (-b + sqrt(delta))/(2*a);
    x2 = (-b - sqrt(delta))/(2*a);

    printf("R1 = %.5lf\nR2 = %.5lf\n", x1,x2);

   }
        else {

    printf("Impossivel calcular\n");

   }


    return 0;
}