Hello. 
I`ve got an expierence with theese guys http://algorithmic-discussiono.loginblogin.com/14303148/????-????????-????-??-??-??-??-??
https://arithmetical-texty.bloggip.com/10803535/????-??-??-??
http://trigonometric-expositiony.blogolenta.com/13728244/2021???-???????
  that were mentioned before. 
And I watned to say thanks!