static void Main(string[] args)
        {
            Day1 day1            = new Day1();
            int  day1Part1Result = day1.RunPart1();
            int  day1Part2Result = day1.RunPart2();

            Console.WriteLine("Day 1 Part 1 result is: " + day1Part1Result);
            Console.WriteLine("Day 1 Part 2 result is: " + day1Part2Result);
            Console.ReadKey();
        }
        private static void Main(string[] args)
        {
            var watch = System.Diagnostics.Stopwatch.StartNew();

            Console.WriteLine("Day 1:");
            Console.WriteLine("---");
            Console.Write("1.) ");
            watch.Restart();
            Console.Write(Day1.RunPart1());
            Console.WriteLine(" - " + watch.ElapsedMilliseconds + " ms");
            Console.Write("2.) ");
            watch.Restart();
            Console.Write(Day1.RunPart2());
            Console.WriteLine(" - " + watch.ElapsedMilliseconds + " ms");
            Console.WriteLine("---");

            Console.WriteLine("Day 2:");
            Console.WriteLine("---");
            Console.Write("1.) ");
            watch.Restart();
            Console.Write(Day2.RunPart1());
            Console.WriteLine(" - " + watch.ElapsedMilliseconds + " ms");
            Console.Write("2.) ");
            watch.Restart();
            Console.Write(Day2.RunPart2());
            Console.WriteLine(" - " + watch.ElapsedMilliseconds + " ms");
            Console.WriteLine("---");

            /*
             * long sum1 = 0;
             * long sum2 = 0;
             *
             * var watch = System.Diagnostics.Stopwatch.StartNew();
             *
             * int num = 1000;
             *
             * for(int i = 0; i < num; ++i)
             * {
             *  watch.Restart();
             *  Day1.Star1.Run();
             *  watch.Stop();
             *  var time1 = watch.ElapsedMilliseconds;
             *  watch.Restart();
             *  Day1.Star2.Run();
             *  watch.Stop();
             *  var time2 = watch.ElapsedMilliseconds;
             *
             *  sum1 += time1;
             *  sum2 += time2;
             * }
             *
             * Console.WriteLine(sum1 / (float)num);
             * Console.WriteLine(sum2 / (float)num);
             */
        }