import java.io.*;

class Main
{
  public static void main(String args[])
  {
    int num;
    String buf;
    try {
      BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
      buf = br.readLine();
      num = Integer.parseInt(buf);
      System.out.println(num * num * num);
    } 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