using System;
public class Program
{
public static void Main()
//Yaretzi
string letter;
Console.WriteLine("Hello, please write a letter");
letter = Console.ReadLine();
switch (letter)
case "a":
case "e":
case "i":
case "o":
case "u":
case "A":
case "E":
case "I":
case "O":
case "U":
Console.WriteLine("It is a vowel");
break;
case "b":
case "c":
case "d":
case "f":
case "g":
case "h":
case "j":
case "k":
case "l":
case "m":
case "n":
case "p":
case "q":
case "r":
case "s":
case "t":
case "v":
case "w":
case "x":
case "y":
case "z":
case "B":
case "C":
case "D":
case "F":
case "G":
case "H":
case "J":
case "K":
case "L":
case "M":
case "N":
case "P":
case "Q":
case "R":
case "S":
case "T":
case "V":
case "W":
case "X":
case "Y":
case "Z":
Console.WriteLine("It is a consonant");
default:
Console.WriteLine();
Console.WriteLine("Please start again");
}
