Secret Twins?

Two words are secret twins if one is just the other with its letters shuffled. 👯

You get two words a and b. Print twins if they're made of exactly the same letters, otherwise not twins. Sorting makes this almost unfair...

Example:

Input: a = "listen", b = "silent" Output: twins

Sorting both words' letters gives the same result (eilnst), so they're made of exactly the same letters.