import java.util.Scanner;


public class Main {
	public static void main(String args[]) {
		
	Scanner sc = new Scanner(System.in);
	String  s = sc.next();
	int x = Integer.parseInt(s);
	System.out.println(x * x * x);
	}

}
/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