import java.io.*;
class Main{
  public static void main(String[] args)throws java.io.IOException{
             BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
  
             String hoge = input.readLine();
             int x = Integer.parseInt(hoge);
             int ans=0;
 
             ans = x*x*x;
  
             System.out.println(ans);
       }
}
     
/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