If you want to solve some nasty problem: try to build a string from an array of its prefix function

Hi everyone! -60 rating after Div. 4 is OK?

Dear developers, please add a dark theme to the site. This will allow you to be on the site with greater comfort, it will not hurt your eyes when switching between IDEs and task conditions or people writing rounds at night will not suffer from this blinding light, and it will simply allow the site to look up to date. Yes, I know there are many extensions and tools, but adding its in site will be better because it more comfortable and harmonious.