using System;

public class Program

{

    public static void Main(string[] args)

    {

        char letters;

        Console.Write("Enter the Letter: ");

        letters = Convert.ToChar(Console.ReadLine());

        switch(letters)

        {             

           case 'B':

           Console.WriteLine("Brown");

           break;

           case 'R':

           Console.WriteLine("Red");

           break;

           case 'O':

           Console.WriteLine("Orange");

           break;

           case 'P':

           Console.WriteLine("Pink");

           break;

           case 'G':

           Console.WriteLine("Green");

           break;

           case 'W':

           Console.WriteLine("White");

           break;

           case 'Y':

           Console.WriteLine("Yellow");

           break;

          default:

              Console.WriteLine("Letter is not in the list");

              break;

        }

    }

}