02. Hospital

using System;

namespace Hospital
{
    class Program
    {
        static void Main(string[] args)
        {
            int period = int.Parse(Console.ReadLine());
            int treated = 0;
            int untreated = 0;
            int doctors = 7;

            for (int i = 1; i <= period; i++)
            {
                int patients = int.Parse(Console.ReadLine());

                if (untreated > treated && i % 3 == 0)
                {
                    doctors++;
                }
                if (patients > doctors)
                {
                    treated += doctors;
                    untreated += patients - doctors;
                }
                else
                {
                    treated += patients;
                }
            }
            Console.WriteLine($"Treated patients: { treated}.");
            Console.WriteLine($"Untreated patients: { untreated}.");
        }
    }
}