I have a question. If you can help me, I would be happy. The question is that how can I print integer as year and month. For example: if my def is like:

```
>>> def print_duration(month):
>>>    # ??
>>> print_duration(15)
year:1, month:3

```

As you see if I enter 15, it should separate 1 year and 3 months or like if I enter 30, it should separate as 2 years, 6 months. How can I write this code? Anyone has any idea?