Contribution #1403

Problem: ru/1.1.11

Added 1.1.11 solution

Editor: Aliaksandr Melnichenka ( @astrosander )

Time: June 14, 2024 at 11:21 AM

GitHub commit: 89c00b0a8dfd5c211db30ad4419e30df96989f27

+142 -195 lines changed