Bolnica

import java.util.Scanner;

public class Bolnica {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Period: ");
        int period = Integer.parseInt(scanner.nextLine());
        if (!(period >= 1 && period <= 1000)) {
            return;
        }

        int treatedPatients = 0;
        int untreatedPatients = 0;
        int doctors = 7;

        for (int day = 1; day <= period; day++) {
            System.out.printf("Number of patients for day %d: ", day);
            int currentPatients = Integer.parseInt(scanner.nextLine());
            if ((day % 3 == 0) && (untreatedPatients > treatedPatients)) {
                doctors++;
            }
            if (currentPatients > doctors) {
                treatedPatients += doctors;
                untreatedPatients += currentPatients - doctors;
            } else {
                treatedPatients += currentPatients;
            }
        }
        System.out.println();
        System.out.println("Number of treated patients: " + treatedPatients);
        System.out.print("Number of untreated patients: " + untreatedPatients);
    }
}