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

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