B33113313132313113313223313331323133313223313231333133313221211113313332331221
>>
B3311331313231311331322331333132313331322331323133313331322121111331333233122
<<
B33113313132313113313223313331323133313223313231333133313221211113313332331223
>>
B33113313132313113313223313331323133313223313231333133313221211113313332331222
>>