import java.io.InputStream;
import java.util.Scanner;

class Main {
	
	public static void main(String[] args){
		
		Scanner In = new Scanner(System.in);
		
		int x = In.nextInt();

		int num = (int)Math.pow(x,3);
		
		System.out.println(num);
		
}
}
/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