import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Main 
{
	public static void main(String arg[]) throws IOException
	{
	InputStreamReader isr = new InputStreamReader(System.in);
	BufferedReader br = new BufferedReader(isr);
	String buf = br.readLine();
	
	int x = Integer.parseInt(buf);
	
	

	
	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