import java.lang.Comparable;

class Person implements Comparable<Person> {
    String _fName;
    String _lName;

    public Person(String firstName, String lastName) {
	_fName = firstName;
	_lName = lastName;
    }

    public String getFirstName() {
	return _fName;
    }

    public String getLastName() {
	return _lName;
    }
    
    public int compareTo(Person p) {
	int res = _lName.compareTo(p.getLastName());
	if (res < 0) {
	    return -1;
	} else if (res > 0) {
	    return 1;
	} else {
	    return _fName.compareTo(p.getFirstName());
	}
    }

    public String toString() {
	return _fName + " " + _lName;
    }
}