B33113313132313113313223313331323133313223313231333133313331333132212212121
>>
B3311331313231311331322331333132313331322331323133313331333133313221221212
<<
B33113313132313113313223313331323133313223313231333133313331333132212212123
>>
B33113313132313113313223313331323133313223313231333133313331333132212212122
>>