Code optimization tutorial - Part 1

/*
Version that eliminates the multiplication by 3.
*/
using System;
using System.Diagnostics;

namespace program_to_optimize
{
    class Program
    {
		//current maximum cycle length
        private static int MaxCycleCount = 0;
		//first number
        private const int FirstNumber = 1;
		//second number
        private const int SecondNumber = 1000000;

		//function used to solve the problem
        static void Solve()
        {
			//for every number between the first and the last
            for (int i = FirstNumber; i < SecondNumber; ++i)
            {
				//cycle count of current number
                int iCurrentCycleCount = 1;
				//current number
                long iNumberToTest = i;

				//while the current number is not 1
                while (iNumberToTest != 1)
                {
					//test if the number is odd
                    if ((iNumberToTest & 0x1) == 1)
                    {
						//the number is odd
                        iNumberToTest = iNumberToTest + iNumberToTest + iNumberToTest + 1;
                    }
                    else
                    {
						//the number is even
                        iNumberToTest = iNumberToTest >> 1;
                    }

					//increment cycle count of current number
                    iCurrentCycleCount++;
                }

				//if current number's cycle count is greater than the maximum cycle count, set maximum cycle count to current number's cycle count
                if (iCurrentCycleCount > MaxCycleCount)
                {
                    MaxCycleCount = iCurrentCycleCount;
                }
            }
        }

		//main function
        static void Main(string[] args)
        {
			//use a stopwatch to measure execution time
            Stopwatch tmrExecutionTime = new Stopwatch();

			//start measurement
            tmrExecutionTime.Start();
			//solve the problem
            Solve();
			//stop measurement
            tmrExecutionTime.Stop();

			//print result and time
            Console.WriteLine("{0} {1}", MaxCycleCount, tmrExecutionTime.ElapsedMilliseconds);
        }
    }
}