import java.util.Scanner;
import java.util.NoSuchElementException;

class Main
{
	public static void main(String args[])
	{
		int num = readInt();
		System.out.println(cubic(num));
	}

	private static int readInt()
	{
		Scanner scanner = new Scanner(System.in);
		try
		{
			return scanner.nextInt();
		} catch (NoSuchElementException e)
		{
			System.out.println("Input Error");
			throw e;
		}
	}

	private static int cubic(int num)
	{
		return num * num * num;
	}
}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz