HW14.12 - Extend a Student class to convert itself to a string
Below is a working start to a Student class that provides a constructor. Extend the class so that when a Student object is passed to the print function, it prints the contents of the first attribute, a single space, and the contents of the last attribute.
The intended way for you to do this is to override the built-in `str` method of objects.
student.py
```python
class Student:
def __init__(self, first, last):
self.first = first
self.last = last
```
