import java.io.*;
public class Main {
		public static void main(String[] arg) throws IOException {
			InputStreamReader is = new InputStreamReader(System.in);       //?????????
	        BufferedReader br = new BufferedReader(is);
			String str = br.readLine();  
			int num = Integer.parseInt(str);
			System.out.println(num*num*num);
	}

}
/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