import java.util.Scanner;
public class VolumeBola { 
        public static void main(String[] args) 
        {
            System.out.print("Masukkan jari-jari bola : ");
            Scanner input = new Scanner(System.in); 
            double jari = input.nextDouble();
            System.out.println("Volume bola adalah " + jari*jari*jari*22/7*4/3);
        }
    }