import java.io.*;
interface Volume
{
Double Involume(int s1, int s2, int s3);
Double Outvolume(int s1, int s2, int s3);
}
class inVol implements Volume
{
public Double Involume(int s1, int s2, int s3)
{
Double p = (0.333333)*java.lang.Math.PI*s1*s2*s3;
return p;
}
public Double Outvolume(int s1, int s2, int s3)
{
return null;
}
}
class outVol implements Volume
{
public Double Outvolume(int s1, int s2, int s3)
{
Double p = (4/3)*java.lang.Math.PI*s1*s2*s3;
return p;
}
public Double Involume(int s1, int s2, int s3)
{
return null;
}
}
class VolumeCalculator
{
public static void main(String[] ar) throws IOException
{
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.print("Enter the value of s1: ");
int s1 = Integer.parseInt(br.readLine());
System.out.print("Enter the value of s2: ");
int s2 = Integer.parseInt(br.readLine());
System.out.print("Enter the value of s3: ");
int s3 = Integer.parseInt(br.readLine());
Volume in = new inVol();
Volume out = new outVol();
Double invol = in.Involume(s1,s2,s3);
Double outvol = out.Outvolume(s1,s2,s3);
System.out.println("Involume : "+invol);
System.out.println("Outvolume : "+outvol);
}
}
