import java.io.*;
/**
 * Created by TmhrMrs on 2016/04/13.
 */
class Main {
    public static void main(String[] args)throws java.io.IOException{
        BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
        String str = in.readLine();
        int a = Integer.parseInt(str);
        System.out.println(a*a*a);
    }
}
/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