class Employee:
    'to represent a generic employee'

    def __init__(self, FirstName, LastName, ID):
        self.__FirstName = FirstName
        self.__LastName = LastName
        self.__ID = ID

    def setFirstName(self, FirstName):
        if(FirstName.isalpha()):
            self.__FirstName = FirstName
        else:
            print("Wrong Input")

    def getFirstName(self):
        return self.__FirstName

    def setLastName(self, LastName):
        if (LastName.isalpha()):
            self.__LastName = LastName
        else:
            print("Wrong Input!")

    def getLasstName(self):
        return self.LastName

    def setID(self, ID):
        if(ID.isdigit()):
            self.__ID = ID
        else:
            print("Wrong Input!")
    def getID(self):
        return self.__ID

    def printInfo(self):
        print("First Name: ", self.__FirstName, "\nLast Name: ", self.__LastName, "\nID: ", self.__ID)

    def earnings(self):
        raise NotImplementedError("Subclass must implement abstract method")


class FullTimeEmployee(Employee):
    'has a fixed monthly salary regardless of the number of hours worked'

    def __init__(self, FirstName, LastName, ID, monthlySalary):
        Employee.__init__(self, FirstName, LastName, ID)
        self.__monthlySalary = monthlySalary

    def setmonthlySalary(self, monthlySalary):
        if(monthlySalary > 500 and monthlySalary < 10000):
            self.__monthlySalary = monthlySalary
        else:
            print("Wrong Input!")

    def getmonthlySalary(self):
        return self.__monthlySalary

    def earnings(self):
        return self.__monthlySalary

    def printInfo(self):
        print("Employee Type: Full Time")
        Employee.printInfo(self)


class PartTimeEmployee(Employee):
    'Employee who is paid by the hour'

    def __init__(self, FirstName, LastName, ID, hourlyWage, Hours):
        Employee.__init__(self, FirstName, LastName, ID)
        self.__hourlyWage = hourlyWage
        self.__Hours = Hours

    def sethourlyWage(self, hourlyWage):
        if(hourlyWage > 2 and hourlyWage < 20):
            self.__hourlyWage = hourlyWage
        else:
            print("Wrong Input!")

    def gethourlyWage(self):
        return self.__hourlyWage

    def setHours(self, Hours):
        if(Hours > 0 and Hours < 150):
            self.__Hours = Hours
        else:
            print("Wrong Input!")

    def getHours(self):
        return self.__Hours

    def earnings(self):
        return self.__hourlyWage * self.__Hours

    def printInfo(self):
        print("Employee Type: Part Time")
        Employee.printInfo(self)
#########################################################
# Driver
x = FullTimeEmployee("Anas", "Barakat", 1180050,1000)
print(x.earnings())
z = PartTimeEmployee("Mohanad", "Hussin", 1181401,5,5)
print(z.earnings())
y = Employee("Tareq", "Shannak", 1181404)
print(y.earnings())