1 #include <iostream>
2 #include <cstdio>
3 #include <cmath>
4
5 using namespace std;
6
7 double pi=acos(-1.0);
8 double s;
9
10 double f(double x)
11 {
12 return pi*x*x*sqrt((s-pi*x*x)/(pi*x)*(s-pi*x*x)/(pi*x)-x*x)/3;
13 }
14
15 bool test(double tl,double tr)
16 {
17 if(f(tl)<f(tr))
18 return true;
19 else
20 return false;
21 }
22
23 int main()
24 {
25 while(scanf("%lf",&s)!=EOF)
26 {
27 double l=0;
28 double r=sqrt(s/(2*pi));
29 while(r-l>1e-8)
30 {
31 double tl=l+(r-l)/3;
32 double tr=r-(r-l)/3;
33 if(test(tl,tr))
34 {
35 l=tl;
36 }
37 else
38 {
39 r=tr;
40 }
41 }
42 double h=sqrt((s-pi*l*l)/(pi*l)*(s-pi*l*l)/(pi*l)-l*l);
43 printf("%.2lf\n",f(l));
44 printf("%.2lf\n",h);
45 printf("%.2lf\n",l);
46 }
47 return 0;
48 }
