using System;

public class Program

{

    public static void Main(string[] args)

    {

        Console.Write("Input a message : ");

        string text = Console.ReadLine().ToUpper();

        CountVowel(text,'A');

        CountVowel(text,'E');

        CountVowel(text,'I');

        CountVowel(text,'O');

        CountVowel(text,'u');

    }

    static void CountVowel (string message,char letter)

    {

        int count = 0;

        foreach (char _message in message)

        {

            if (_message == letter)

            {

                count++;  

            }

        }

        Console.WriteLine("The number of letter '{0}' is '{1}' ",letter,count);

    }

}