The Most Powerful Word

using System;

namespace TheMostPowerfulWord
{
    class Program
    {
        static void Main(string[] args)
        {
            string word = Console.ReadLine();
            string strong = "";
            double total = 0;

            while (word != "End of words")
            {
                double sum = 0;

                for (int i = 0; i <= word.Length - 1; i++)
                {
                    sum += word[i];
                }

                switch (word[0].ToLower())
                {
                    case 'a':
                    case 'e':
                    case 'i':
                    case 'o':
                    case 'u':
                    case 'y':
                        sum *= word.Length;
                        break;

                    default:
                        sum /= word.Length;
                        break;
                }

                if (sum > total)
                {
                    strong = word;
                    total = sum;
                }
                word = Console.ReadLine();
            }
            Console.WriteLine($"The most powerful word is {strong} - {Math.Floor(total)}");
        }
    }
}