Anagram Twins, Turbo Mode

You caught secret twins with sorting — now catch them with counting: twins use each letter the SAME number of times. 👯⚡

You get words a and b. Build a letter-count dict for each and print twins if the dicts are equal, otherwise not twins.

Example:

Input: a = "night", b = "thing" Output: twins

Both words use each letter (g, h, i, n, t) exactly once, so their letter-count dicts come out equal.