import java.io.BufferedReader;
import java.io.InputStreamReader;
/*
 * 提出用Mainクラス
 */
public class Main {
    public static void main(String args[] ) throws Exception {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        int N;
        int result;
        String readLine = br.readLine();
        N = Integer.parseInt(readLine);
        result = N * N * N;
        System.out.println(result);
    }
}
/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