"".
: 55, . , . , . . , , , . , .
___________________
|___|___|___|___|___|
|___|___|___|___|___|
|__|__|__|__|__|
|___|___|___|___|___|
|___|___|___|___|___|
, , , :
___________________
|___|___|___|___|___|
|___|___|___|___|___|
|__|__|__|__|__|
|___|___|__|___|___|
|___|___|___|___|___|