++++++++++
[ 3*10 and 10*10
  ->+++>++++++++++<<
]>>
[ filling cells
  ->++>>++>++>+>++>>++>++>++>++>++>++>++>++>++>++>++[</]<[<]<[<]>>
]<
+++++++++<<
[ rough codes correction loop
  ->>>+>+>+>+++>+>+>+>+>+>+>+>+>+>+>+>+>+>+[<]<
]
more accurate сodes correction
>>>++>
-->+++++++>------>++++++>++>+++++++++>++++++++++>++++++++>--->++++++++++>------>++++++>
++>+++++++++++>++++++++++++>------>+++
rewind and output
[<]>[.>]