SummingLetters

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace SummingLetters
{
    class SummingLetters
    {
        static void Main(string[] args)
        {
            var text = Console.ReadLine();

            var length = text.Length;

            var sum = 0;

            for(int i = 0; i < length; i++)
            {
                var currenLetter = text[i];

                switch(currenLetter)
                {
                    case 'a':
                        sum += 1;
                        break;
                    case 'e':
                        sum += 2;
                        break;
                    case 'i':
                        sum += 3;
                        break;
                    case 'o':
                        sum += 4;
                        break;
                    case 'u':
                        sum += 5;
                        break;
                }
            }

            Console.WriteLine(sum);

        }
    }
}