13. Vowel or Digit

using System;
using System.Numerics;

namespace Demo
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                char input = char.Parse(Console.ReadLine());
                if (input >= 48 && input <= 57)
                {
                    Console.WriteLine("digit");
                }
                else if (input == 'a' || input == 'o' || input == 'u' || input == 'y' || input == 'i' || input == 'e')
                {
                    Console.WriteLine("vowel");
                }
                else
                {
                    Console.WriteLine("other");
                }
            }
            catch (Exception)
            {

            }
        }
    }
}