import java.util.Scanner;
public class Main {
	public static void main(String[] arg){
		// ?¨??????\???
        Scanner scan = new Scanner(System.in);
        // int???????????????
        int n = scan.nextInt();
        int cube = n * n * n;
        // ??????(????°???????????????????????????????)
        System.out.println(cube);
        // Scanner????????????
        scan.close();
	}
}
/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