import java.io.*;
class Main
{
    public static void main(String[] args) 
    {
	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	String line=null;
	try {
	    line = br.readLine();
	} catch (IOException e){
	    System.out.println(e);
	}

	int x = Integer.parseInt(line);
	int y = x * x * x;
	System.out.println(y);
    }
}
/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