using System;

​

public class Program

{

    public static void Main()

    {

        // char c = 'a';

        char c = 'A';

        // char c = '1';

        // char c = '#';

        if (Char.IsLower(c))

        {

            Console.WriteLine("The character is lowercase.");

        }

        else if (Char.IsUpper(c))

        {

            Console.WriteLine("The character is uppercase.");

        }

        else if (Char.IsDigit(c))

        {

            Console.WriteLine("The character is a digit");

        }

        else

        {

            Console.WriteLine("The character isn't an alphabetic character.");

        }

    }

}