/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner input = new Scanner(System.in);
 
		final double pi=3.14159;
 
		String s = input.nextLine();
		long r = Long.parseLong(s); 
		double v=(4.0/3)*pi*(r*r*r);
 
		System.out.printf("VOLUME = "+String.format("%.3f",v));
		// your code goes here
	}
}

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

MTUyMw==

1523