Methods-Ex\Vowels Count

using System;

namespace methods_exerci
{
    class Program
    {
        static void Main(string[] args)
        {
            string text = Console.ReadLine().ToLower();
            Console.WriteLine(Vowels(text));

        }

        static int Vowels (string text)
        {
            int vowels = 0;

            for (int i = 0; i < text.Length; i++)
            {
                char word = text[i];

                switch(word)
                {
                    case 'a':
                        vowels++;
                        break;
                    case 'o':
                        vowels++;
                        break;
                    case 'e':
                        vowels++;
                        break;
                    case 'i':
                        vowels++;
                        break;
                    case 'u':
                        vowels++;
                        break;
                    case 'y':
                        vowels++;
                        break;
                }
            }

            return vowels;
        }
    }
}