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

public class Main{

	public static void main(String[] args){

		//??\??????????????????
		BufferedReader reader= new BufferedReader(new InputStreamReader(System.in));

		String s;

		try{
		s=reader.readLine();
		try{
			int x=Integer.parseInt(s);

			System.out.println(cubeX(x));

		}catch(NumberFormatException e){
			System.out.println("??????:"+e);

		}


		}catch(IOException e){
			System.out.println("??????:"+e);
		}


	}//main??¢??°

	public static int cubeX(int x){

		return 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