import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        Scanner s = null;
        try {
            s = new Scanner(System.in);
            String line = s.nextLine();
            System.out.println(powBy3(Integer.parseInt(line)));
        } finally {
            if (s != null) {
                s.close();
            }
        }
    }

    private static int powBy3(int i) {
        return i * i * i;
    }
}
/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