import java.util.Scanner;

class Main{
   public static void main(String args[]) {
      Scanner stdIn = new Scanner(System.in);
      int n = stdIn.nextInt();
      int sum = 1;
      for(int i = 0; i < 3; i++){
         sum *= n;
      }
      System.out.println(sum);
   }
}
/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