using static System.Console;

using System;                   

public class Program

{

    public static void Main()

    {

        WriteLine("\nException catched");

        try

        {

            Callthis("1");

        }

        catch(Exception ex)

        {

            if(ex.Message.Equals("1"))

                WriteLine("Error occurred -> 1");

            else

                throw ;

        }

        WriteLine("\nException not catched");

        try

        {

            Callthis("2");

        }

        catch(Exception ex)

        {

            if(ex.Message.Equals("1"))

                WriteLine("Error occurred -> 1");

            else

                throw ;

        }

    }

    public static void Callthis(string i)

    {

            throw new Exception(i);

    }

}