B33113313132313113313223313331323133313221211331333133313133313133312111121
>>
B3311331313231311331322331333132313331322121133133313331313331313331211112
<<
B33113313132313113313223313331323133313221211331333133313133313133312111123
>>
B33113313132313113313223313331323133313221211331333133313133313133312111122
>>