B33113313132313113313223313331323133311211312111112111133133313331333123312121
>>
B3311331313231311331322331333132313331121131211111211113313331333133312331212
<<
B33113313132313113313223313331323133311211312111112111133133313331333123312123
>>
B33113313132313113313223313331323133311211312111112111133133313331333123312122
>>