Contribution #168

Problem: ru/2.1.7

Added 2.1.7 2.1.8

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: October 11, 2023 at 11:05 PM

GitHub commit: a7215794a98914ce8d2da20327b4831c8e671249

+236 -50 lines changed