Perfectly Paired Letters?

In the Searching unit you counted even-count letters the slow way. Turbo version: does EVERY letter of the word appear an even number of times? ✨⚡

You get a lowercase word. Print perfectly paired if every letter's count is even, otherwise odd letters out.

Example:

Input: word = "abab" Output: perfectly paired

Tallying gives a=2, b=2 — every letter's count is even.