Contribution #73

Problem: ru/1.3.1

Added 1.3.1 1.3.2 1.3.5 1.3.6 1.3.7 1.3.8 1.3.9 1.3.12

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: October 10, 2023 at 07:57 PM

GitHub commit: 308c4a633aea255170f51009d6d5928fa7c63822

+217 -47 lines changed