I’m trying to make a regex trying to find numbers between 1 and 3 digits, but I don’t want it to match numbers included in years (e.g. “202” in “2024”).

I’ve tried serveral regex, here’s a list :

(?<!20d{2})(?:nos*)?(d{1,3})(?!d)

(?<!20)(?:nos*)?(d{1,3})(?!d)

(?<!d)(?:nos*)?(d{1,3})(?!d)

(?<!b20d{2}b)(?:nos*)?(d{1,3})(?!d)

(?:nos*)?(d{1,3})(?!20d{2})(?!d)

b(?:nos*)?(d{1,3})b

For example, in this string : APUDNSLL-22-Nov-2022 or this one : CHUATDN-Sept-2022-20
I want it to find 22 and 20 but not parts of 2022.

Is there a way to make it work ?