#define eps 10e-6

double cal(){}//计算题目所需要的值

while(l+eps<r)

{

    m1=l+(r-l)/3;

    m2=r-(r-l)/3;

    v1=cal(m1);

    v2=cal(m2);

    if(v1<v2)l=m1;

    else r=m2;

}

#include <iostream>

#include <cmath>

#include <cstdio>

#include <algorithm>

using namespace std;

const double PI=3.141592653;

const double eps=1e-8;

double S,RR,LL,m,mm;

double cal(double r){

	return sqrt(((r*S*S)-(2*PI*S*r*r))/9.0);

}

int main(){

	while(scanf("%lf",&S)!=EOF){

		RR=S/PI;LL=0;

		while(LL+eps<RR){

			m=LL+(RR-LL)/3;

			mm=RR-(RR-LL)/3;

			if(cal(m)<cal(mm))

			LL=m;

			else RR=mm;

		}

		double v=cal(LL);

		printf("%.2lf\n%.2lf\n%.2lf\n",v,v*3/(PI*LL),sqrt(LL));

	}

	return 0;

}