An integer N (1 ≤ N ≤ 9999), representing some quantity or size. If N < 1000, the upper digits are filled with 0s.

### Example Input:

```
6174
2012
3333
0000
```

### Function Signature:
Write a function f(inputs) that takes in the input. 
def f(inputs: List[int]): 
    ''' 
    inputs: a list of integers
    '''