4.5

import java.util.Scanner;

public class Exercise_kursova_rabota {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);
        int period = Integer.parseInt(sc.nextLine());
        int treatedPatients = 0;
        int untreatedPatients = 0;
        int countOfDoctors = 7;

        for (int day = 1; day <= period; day++) {
            int currentPatients = Integer.parseInt(sc.nextLine());

            if ((day % 3 == 0) && (untreatedPatients > treatedPatients)) {
                countOfDoctors++;
            }
            if (currentPatients > countOfDoctors) {
                treatedPatients += countOfDoctors;
                untreatedPatients += currentPatients - countOfDoctors;
            } else {
                treatedPatients += currentPatients;
            }
        }
        System.out.println("Treated patients: " + treatedPatients);
        System.out.println("Untreated patients: " + untreatedPatients);
    }

}