Contribution #687

Problem: ru/2.2.1

Added analog solutions to 2.2.1 2.2.2 2.2.3 2.2.14

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: November 25, 2023 at 09:54 PM

GitHub commit: a6f4de6f414aac453e897fb990aaa999024e2ef0

+200 -200 lines changed