Bolnitsa Fixed

using System;

namespace Fixed_Bolnitsa
{
    class Program
    {
        static void Main(string[] args)
        {
                int period = int.Parse(Console.ReadLine());
                int doctors = 7;
                int treatP = 0;
                int untreatP = 0;
                int patientsOfDay = 0;

                for (int day = 1; day <= period; day++)
                {
                      patientsOfDay = int.Parse(Console.ReadLine());
                  if (day % 3 == 0 && treatP < untreatP && day != 1)
                  {
                      doctors = doctors + 1;
                  }
                  else
                  { doctors = doctors + 0; }
                  int result = doctors - patientsOfDay;


                  if (result >= 0)
                       { treatP = treatP + patientsOfDay; }
                       else
                       {
                          treatP = treatP + doctors;
                          untreatP = untreatP + Math.Abs(result);
                       }
                  }
                  Console.WriteLine("Treated patients: {0}.", treatP);
                  Console.WriteLine("Untreated patients: {0}.", untreatP);
        }
    }
}