#include<cstdio>
#include<cmath>
int main(){
    double a=0,b=0,c=0;
    double disc=0,x1=0,x2=0,p=0,q=0;
    scanf("%lf %lf %lf",&a,&b,&c);
    disc=(b*b)-(4*a*c);
    if(disc<0||a==0){
        printf("Impossivel calcular\n");
    }else if(disc==0){
        x1=-b/(2*a);
        printf("R1 = %.5lf\n",x1);
        printf("R2 = %.5lf\n",x1);
    }
    else{
        p=-b/(2*a);
        q=sqrt(disc)/(2*a);
        x1=p-q;
        x2=p+q;

        if(x1<x2){
        printf("R1 = %.5lf\nR2 = %.5lf\n",x1,x2);
        }else{
        printf("R1 = %.5lf\nR2 = %.5lf\n",x2,x1);   
        }
    }
    return 0;
}