...
() — 50 (...
"-" ( ...
"" ( ) — 100 ...
: 1 ; 1 ...
https://www.youtube.com/watch?v=xBrHCe2bz3o&t=750s
2
1 ( 250 )
180 .
300
1 \ ( )
850
300 .
1,5 .
1-2 \ ( 2)
: 1