Canonicalized Input Description: 

An integer N (1 ≤ N ≤ 100), representing some quantity or size.
An integer A (0 ≤ A ≤ N), representing some quantity.
An integer B (0 ≤ B ≤ N), representing some quantity.

### Example Input:

```
10 3 5
```

### Function Signature:

Write a function f(N, A, B) that takes in the input.
```python
def f(N: int, A: int, B: int):
    '''
    N: an integer
    A: an integer
    B: an integer
    '''
```