I am not really familiar with Python yet.
I have a string like `"11223300"`. Now I want to increase the last byte of that string ( from `"00"` to `"FF"`). I tried to convert the string into an integer ( `integer=int(string,16)`) and increase it, and convert it back later, but that does not work for me. Maybe one of you guys has a better idea.

```
string = "11223300"
counter = int(string, 16)

for i in range(255): 
    counter = counter + 1
    IV = hex(counter)

```

Now I want to convert the `IV` from hex into a string

Thanks!