import java.io.*;

public class Main
{
	public static void main(String[] args) throws IOException
	{
		int x,x_3;
		BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
		String line =reader.readLine();
		x = Integer.parseInt(line);
		x_3 = x*x*x;
		System.out.println(x_3);
	}
}
/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