static void Main(string[] args)
        {
            Console.WriteLine(Program.MethodC());
            Program.MethodB();
            Console.ReadLine();
        }

static void MethodA()
        {
            try
            {
                throw new NullReferenceException();
            }
            catch (IndexOutOfRangeException)
            {
                throw;
            }
            finally
            {
                Console.WriteLine("MethodA finally");
            }
        }

static void MethodB()
        {
            try
            {
                MethodA();
            }
            catch (NullReferenceException)
            {
                Console.WriteLine("MethodB catch");
            }
            finally
            {
                Console.WriteLine("MethodB finally");
            }
        }

static int i = 1;
        static int MethodC()
        {
            try
            {
                Console.WriteLine("MethodC try");
                return i;
            }
            finally
            {
                i = 2;
                Console.WriteLine("MethodC finally");
                Console.WriteLine("MethodC:"+i);
            }
        }