Contribution #697

Problem: ru/2.2.12

Added 2.1.4-2.1.13 2.1.15

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: November 25, 2023 at 09:57 PM

GitHub commit: 462eb0b21ffa0679756007e5ec115c632c3b10f3

+178 -1 lines changed