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 word;
		try {
			word = reader.readLine();
			int num = Integer.parseInt(word);
			int ans = num * num * num;
			System.out.println(ans);
		} catch (IOException e) {
			// TODO ????????????????????? catch ????????????
			e.printStackTrace();
		} finally {
			try {
				reader.close();
			} catch (IOException e) {
				// TODO ????????????????????? catch ????????????
				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