import java.io.*;
class Main{
public static void main(String[]args)throws IOException{
System.out.println((int)Math.pow(Integer.parseInt(new BufferedReader(new InputStreamReader(System.in)).readLine()), 3));
}
}
/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