import java.util.Scanner;

public class Main{
    public static void main(String[]args){
	Scanner stdin = new Scanner(System.in);
	//int x = Integer.parseInt(args[0]);
	int x = stdin.nextInt();
	if(1<=x && x<=100){
	    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