class ParkingSystem {
    int a = 0;
    int b = 0;
    int c = 0;
    public ParkingSystem(int big, int medium, int small) {
        a = big;
        b = medium;
        c = small;
    }

    public boolean addCar(int carType) {
        if(carType == 1 && a > 0){
            a--;
            return true;
        }
        if(carType == 2 && b >0){
            b--;
            return true;
        }
        if(carType == 3 && c >0){
            c--;
            return true;
        }
        return false;
    }
}