There's no such text in the problem - see https://adventofcode.com/2021/day/1 https://adventofcode.com/2021/day/1. That comment describes the solution, not the

There's no such text in the problem - see https://adventofcode.com/2021/day/1 https://adventofcode.com/2021/day/1. That comment describes the solution, not the problem. The program's output is also annotated; you don't do that if you try to be fast, you already know what the output is gonna mean.