import java.io.*;

class Main{
	public static void main (String arg[]){
		int num;
		String buf;
		try{
			BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
			
			buf = br.readLine();
			num = Integer.parseInt(buf);
			System.out.print(num*num*num);
			System.out.print("\n");
		} catch(Exception e ) {
		}
	}
}
/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