using System;

namespace VowelSum
{
    class Program
    {
        static void Main(string[] args)
        {
            string text = Console.ReadLine();
            int len =text.Length;
            double sum = 0;
            for (int i = 0; i < len; i++)
            {
                char letter = text[i];
                if(letter=='a')
                {
                    sum += 1;
                }
                else if(letter=='e')
                {
                    sum += 2;
                }
                else if(letter=='i')
                {
                    sum += 3;
                }
                else if(letter =='o')
                {
                    sum += 4;
                }
                else if(letter== 'u')
                {
                    sum += 5;
                }
            }


          Console.WriteLine(sum);
        }
    }
}