using System;

public class Program

{

    public static void Main()

    {

        String letters;

        letters = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";

        foreach(char letter in letters)

{

            Console.Write(letter);

            if(letter == 'G' || letter == 'P' || letter == 'S' || letter == 'V' || letter == 'X')

{

            Console.WriteLine();

}

            else if (letter == 'Y')

            {

                Console.Write(" and ");

            }

​

}

    }

}