BasicsExamSudokuResults

using System;


class SudokuResults
{
    static void Main()
    {
        string star = "";
        string inputString = Console.ReadLine();
        // int counter = 0, min = 0, sec = 0, sum = 0;
        int counter = 0, sum = 0;
        double average = 0;

        while (inputString != "Quit")
        {
            // min = int.Parse(inputString.Substring(0, 2));
            // sec = int.Parse(inputString.Substring(3, 2));
            // sum += min * 60 + sec;
            sum += 60 * int.Parse(inputString.Substring(0, 2)) +
                int.Parse(inputString.Substring(3, 2));
            counter++;
            inputString = Console.ReadLine();
            // inputString = "Quit";
        }

        average = (double)sum / counter;

        if (average < 720)
        {
            star = "Gold";
        }
        else if (720 <= average && average <= 1440)
        {
            star = "Silver";
        }
        else
        {
            star = "Bronze";
        }

        Console.WriteLine("{0} Star", star);
        Console.WriteLine("Games - {0} \\ Average seconds - {1}", counter, Math.Ceiling(average));
    }
}