using System;

namespace _2._VowelsCount
{
    class VowelsCount
    {
        static void Main()
        {
            string word = Console.ReadLine();

            string output = GetVowelsCount(word);
            Console.WriteLine(output);

        }

        static string GetVowelsCount(string word)
        {
            int count = 0;

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

                bool conditionA = currentLetter == 'a' || currentLetter == 'A';
                bool conditionE = currentLetter == 'e' || currentLetter == 'E';
                bool conditionI = currentLetter == 'i' || currentLetter == 'I';
                bool conditionO = currentLetter == 'o' || currentLetter == 'O';
                bool conditionU = currentLetter == 'u' || currentLetter == 'U';
                bool conditionY = currentLetter == 'y' || currentLetter == 'Y';



                if (conditionA || conditionE || conditionI || conditionO || conditionU || conditionY)
                {
                    count++;
                }
            }

            string counter = count.ToString();
            return counter;
        }
    }
}