import java.io.*;
public class Main {
	public static void main(String[] args){
		BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
		try{
		String s = input.readLine();
		int x=Integer.parseInt(s);
		System.out.println(x*x*x);
		}catch(IOException 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