:
- , c D. .
! .
---------------------------------------------------
https://www.youtube.com/watch?v=byDUwTdItjw&t=971s
https://www.youtube.com/watch?v=QlYXtNW4nag
https://www.youtube.com/watch?v=-eEVRNSAMnk&t=35s
https://www.youtube.com/watch?v=h2OdOqEVGX0&t=1290s
( )
, , ,
" "