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

class Main {
	public static void main(String[] args) throws IOException {
		PrintStream printStream = System.out;
		InputStream inputStream = System.in;

		InputStreamReader inputStreamReader = new InputStreamReader(inputStream);
		BufferedReader bufferedReader = new BufferedReader(inputStreamReader);

		String input = bufferedReader.readLine();
		long x = Long.parseLong(input);

		printStream.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