Lesson #4

using System;

namespace testt
{
    class Program
    {
        static void Main()
        {
            int a;

            // STATEMENT
            // regular
            {
                int a;
            }

            // complex
            {

            }

            /*
             * 1. Localization
             * 2. Grouping
             */

            {
                int a;
            }

            Console.WriteLine(a);
        }
    }
}