View difference between Paste ID: eYK7sPft and Aaq9G9gQ

 using System;
 using System.Globalization;
 class Program
 {
     static void Main()
     {
         int inputCount = 0;
         int averageSeconds = 0;
         int totalSeconds = 0;
         //DateTime data;
         string[] stars =
         {
             "Gold Star", // star was lowercase
             "Silver Star",
             "Bronze Star"
         };
         string input = Console.ReadLine(); // read input
         do
         {
-            int minutes = int.Parse(input.Substring(0, 2));
+            int minutes = int.Parse(input.Substring(0, 2)); // first two digits will always be minutes since input is never larger than 99:59
-            int seconds = int.Parse(input.Substring(3, 2));
+            int seconds = int.Parse(input.Substring(3, 2)); // digits after colon are seconds
             //data = DateTime.ParseExact(input, "mm:ss", CultureInfo.InvariantCulture);
             // datetime not suitable since anything above 59:59 isnt valid
             inputCount++;
             totalSeconds += minutes * 60 + seconds; // add time
             input = Console.ReadLine();
         } while (input != "Quit");
 
         averageSeconds = (int)Math.Ceiling((double)totalSeconds / inputCount); // get average time and round up
         if (averageSeconds < 720)
         {
             Console.WriteLine(stars[0]);
         }
         else if (averageSeconds >= 720 && averageSeconds < 1440)
         {
             Console.WriteLine(stars[1]);
         }
         else
         {
             Console.WriteLine(stars[2]);
         }
         Console.WriteLine("Games - {0} \\ Average seconds - {1}", inputCount, averageSeconds); // escaped '\'
         return;
 
     }
 }