Contribution #334

Problem: ru/4.1.2

Added: 4.1.2 4.1.3 4.1.4 4.1.5

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: October 25, 2023 at 01:44 PM

GitHub commit: efa101620d58862c92e9974b9d65d9b6848c74e9

+236 -48 lines changed