import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class Main {

	public static void main(String[] args) throws IOException{
		  BufferedReader r =new BufferedReader(new InputStreamReader(System.in), 1);
		                                        // ???????????\????????????
		  
		  String s =r.readLine();
		  int x = Integer.parseInt(s);
		System.out.println(x*x*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