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

class Main{
    public static void main(String[] args){
    	InputStreamReader isr = new InputStreamReader(System.in);
    	BufferedReader br = new BufferedReader(isr);
    	try {
			String buf = br.readLine();
			int num = Integer.parseInt(buf);
			System.out.println(num * num * num);
		} catch (IOException e) {
			e.printStackTrace();
		}
    }
}
/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