B33113313132313113313223313331323133313221211331333133313331311331323323211
>>
B3311331313231311331322331333132313331322121133133313331333131133132332321
<<
B33113313132313113313223313331323133313221211331333133313331311331323323213
>>
B33113313132313113313223313331323133313221211331333133313331311331323323212
>>