B33113313132313113313223313331323132313331333133112111133133313233212312121
>>
B3311331313231311331322331333132313231333133313311211113313331323321231212
<<
B33113313132313113313223313331323132313331333133112111133133313233212312123
>>
B33113313132313113313223313331323132313331333133112111133133313233212312122
>>