import java.io.*;

public class Main{

public static void main(String[] args)  throws IOException {


BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
String s = new String(in.readLine());
        
int x = Integer.parseInt(s);

x = x*x*x;

System.out.println(x);

}
}
/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