Canonicalized Input Description:

An integer N (1 ≤ N ≤ 200000), representing some quantity or size.
A list of N integers, where each integer is between -10^9 and 10^9.

### Example Input:

```
5
18
102
-155
53
32
```

### Function Signature:
Write a function f(N, A) that takes in the input.
```python
def f(N: int, A: List[int]):
    ''' 
    N: an integer 
    A: a list of integers
    '''
```