Sum of Vowels

using System;

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