#include <iostream>
#include <string>

using namespace std;

class AutoTaxi {
private:
    string car_number;
    int location;
    string mode;

public:
    AutoTaxi(string car_number, int location = 0, string mode = "Normal") {
        this->car_number = car_number;
        this->location = location;
        this->mode = mode;
    }

    int calculate_fare(int distance) {
        int fare = 4000;

        if (distance > 2000) {
            int extra_distance = distance - 2000;
            fare += (extra_distance / 132) * 100;
        }

        if (mode == "Night") {
            fare = static_cast<int>(fare * 1.2);
        }

        return fare;
    }

    void switch_mode() {
        if (mode == "Normal") {
            mode = "Night";
        } else {
            mode = "Normal";
        }
    }
};

int main() {
    AutoTaxi taxi("123가4567", 0, "Normal");
    int distance = 5000;

    taxi.switch_mode();

    int fare = taxi.calculate_fare(distance);
    cout << fare << endl;

    return 0;
}