An integer A (1 ≤ A ≤ 10^100).
An integer B (1 ≤ B ≤ 10^100).

### Example Input:

```
36
24
```

### Function Signature:
Write a function f(A, B) that takes in the input.
def f(A: str, B: str):
    ''' 
    A: a string representing a large integer 
    B: a string representing a large integer 
    '''