using System;

​

public class Program

{

    enum Working_Days

    {

        monday,tuesday,wednesday,thursday,friday

    }

    public static void Main()

    {

        bool f=false;

        Console.WriteLine("Enter the day to check bank is opened or closed");

         string day = Console.ReadLine();

        bool isNumber = false;

​

        for (int i = 0; i < day.Length; i++)

        {

            if (char.IsDigit(day[i]))

            {

                isNumber = true;

                break;

            }

        }

​

        try

{

        if (isNumber)

        {

            throw new Exception("bank name should not contain any number.");

        }

}

catch (Exception e)

{

    Console.WriteLine("Enter a valid bank name");

               day=Console.ReadLine();

}

finally

{

  Console.WriteLine("Thanks for coming!!!!!!!!!!!!!!!.");

}

​

        foreach (string i in Enum.GetNames(typeof(Working_Days)))

        {

            if(i.Equals(day))

            {

                Console.WriteLine("Bank Open");

                f=true;

                break;

            }

        }

        if(f==false)

        Console.WriteLine("Bank Close");

    }

}