import java.io.*;

class Main
{
	public static void main(String args[])
	{
		try
		{
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

			int x = Integer.parseInt(br.readLine());

			x *= x*x;

			System.out.println(x);

		}
		catch(Exception e)
		{
			System.out.println(e);
		}
	}
}
/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