import java.io.*;
//??????????????????????????\?????????????????????
public class Main {

    public static void main(String[] args) {
        
        try{
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String str = br.readLine();
            int N = Integer.parseInt(str);
            int Ans = N*N*N;
            System.out.println(Ans);
        }
        catch(IOException e) {
            System.out.println("??\????????¨??????");    
        }
        catch(NumberFormatException e) {
            System.out.println("?????¨?????????"); 
        }
    }
    
}
/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