Question: Bilenko says he hopes to see CatBoost impact the tech community in a positive way whether that it is for retail or insurance or any other commercial use and he emphasizes the wealth of developer talent in Russia
Please fix the punctuation.
Fixed: [Bilenko says he hopes to see CatBoost impact the tech community in a positive way, whether that it is for retail or insurance or any other commercial use, and he emphasizes the wealth of developer talent in Russia.]

Question: for as long as a branch of knowledge supplies a surplus of such problems it maintains its vitality
Please fix the punctuation.
Fixed: [... [for] as long as a branch of knowledge supplies a surplus of such problems, it maintains its vitality.]

Question: If the entire ceiling or parts of it are particularly subjected to soiling it is important to get it regularly cleaned
Please fix the punctuation.
Fixed: [If the entire ceiling or parts of it are particularly subjected to soiling, it is important to get it regularly cleaned.]

Question: Cameras autofocus is improved time between shots is reduced
Please fix the punctuation.
Fixed:
[Camera's autofocus is improved, time between shots is reduced.]