Contribution #731

Problem: ru/2.3.19

Added 2.3.19 2.3.20

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: November 27, 2023 at 10:05 PM

GitHub commit: 639b93a485a810396ebc5c368ce3f4f6162ecfdf

+193 -1 lines changed