import java.io.*;

public class Main{
	public static void main(String[] args) throws IOException{
		 BufferedReader r =
            new BufferedReader(new InputStreamReader(System.in), 1);
		String s = r.readLine();
		int a = Integer.parseInt(s);
		System.out.println(a*a*a);
	}
}
/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