Contribution #378

Problem: ru/2.7.9

Added 2.7.9 2.7.13

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: November 2, 2023 at 10:05 PM

GitHub commit: 49c15f47c8fd122b8686d2ad1248d91e2dee43a7

+236 -50 lines changed