B33113313132313113313223313331323133313221211331333133313331311331323211113121
>>
B3311331313231311331322331333132313331322121133133313331333131133132321111312
<<
B33113313132313113313223313331323133313221211331333133313331311331323211113123
>>
B33113313132313113313223313331323133313221211331333133313331311331323211113122
>>