06._Exam_Results

using System;

namespace _06._Exam_Results
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = Console.ReadLine();
            double points = 0;
            while (name != "Midnight")
            {
                double pointsCounter = 0;
                for (int i = 1; i <= 6; i++)
                {
                    points = double.Parse(Console.ReadLine());
                    if (points < 0)
                    {
                        Console.WriteLine($"{name} was cheating!");
                        break;
                    }
                    pointsCounter += points;
                }
                double totalPoints = Math.Floor(pointsCounter / 600 * 100);
                double rate = totalPoints * 0.06;
                if (rate >= 5.00 && points >= 0)
                {
                    Console.WriteLine("===================");
                    Console.WriteLine("|   CERTIFICATE   |");
                    Console.WriteLine($"|    {rate:f2}/6.00    |");
                    Console.WriteLine("===================");
                    Console.WriteLine($"Issued to {name}");
                }
                else if (rate < 5 && rate >= 3 && points >= 0)
                {
                    Console.WriteLine($"{name} - {rate:f2}");
                }
                else if (rate < 3.00 && rate >= 0 && points >= 0)
                {
                    Console.WriteLine($"{name} - 2.00");
                }
                name = Console.ReadLine();
            }
        }
    }
}