import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		// TODO ?????????????????????????????????????????????

		//int x = 2;
		Scanner scan = new Scanner(System.in);
	    int x = scan.nextInt();
		int z = (int)Math.pow(x, 3);
		System.out.println(z);
	}
}
/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