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

class Main {
	public static void main(String[] args) {
		try{
			BufferedReader stdReader = new BufferedReader(new InputStreamReader(System.in));
			String str;
			if((str = stdReader.readLine()) != null)
			{
				int x = Integer.parseInt(str);
				System.out.println(x*x*x);
			}
			
		}
		catch (Exception e)
		{
			e.getStackTrace();
			System.exit(0);
		}
	}
}
/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