Contribution #7

Problem: ru/1.1.7

Added 1.1.1 1.1.4 1.1.7 1.1.8 1.1.9 1.1.10 1.1.11 1.1.12 1.1.13 1.1.14 1.1.15

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: October 10, 2023 at 08:46 AM

+217 -47 lines changed