class Employee {
	private String id;
	private String name;
	private double salary;

	public String toString() {
		return id + " " + name + " " + salary;
	}

	public Employee(String i, String n, double s) {
		id = i;
		name = n;
		salary = s;
	}
}

class Manager extends Employee {
	private double bonus;

	public String toString() {
		return super.toString() + " " + bonus;
	}

	public Manager(String i, String n, double s, double b) {
		super(i, n, s);
		bonus = b;
	}
}

class Main_Polym {
	public static void main(String[] args) {
		Employee a = new Employee("001", "Alice", 1000);
		Employee b = new Manager("902", "Brian", 1000, 10);

		// Manager c = new Employee("003", "Candy", 1000); //compilation error:
		// cannot convert from Employee to Manager

		Manager d = new Manager("904", "Daisy", 1000, 10);

		System.out.println(a); // 001 Alice 1000.0
		System.out.println(b); // 902 Brian 1000.0 10.0
		// System.out.println(c); //
		System.out.println(d); // 904 Daisy 1000.0 10.0
	}
}