import java.util.Scanner;

class Main{
    static int cube(int x){
	return x*x*x;
    }
    public static void main(String args[]){
	int n;
	Scanner scan = new Scanner(System.in);
	n = scan.nextInt();
	System.out.println(cube(n));
    }
}
/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