Who's Cutting the Line?

The queue is supposed to go shortest to tallest — a line-cutter is someone TALLER than the person right behind them. 😤

You get the heights in line order. Print the height of the FIRST line-cutter, or no cutters if the line is fair.

Example:

Input: heights = [110, 125, 160, 130, 140] Output: 160

160 is taller than the person right behind them (130), making 160 the first line-cutter.