B33113313132313113313223313331323132313331333133112111112111112111112213121121
>>
B3311331313231311331322331333132313231333133313311211111211111211111221312112
<<
B33113313132313113313223313331323132313331333133112111112111112111112213121123
>>
B33113313132313113313223313331323132313331333133112111112111112111112213121122
>>