import java.io.*;
 
public class Main {
        public static void main(String[] args){
       try{
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        String textline = br.readLine();
        double x = Math.pow(Integer.parseInt(textline), 3);
        System.out.println((int)x);
        br.close();
       }
      catch(IOException e){};
    }
}
/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