B33113313132313113313223313331323133313221211331333133313331331123221211
>>
B3311331313231311331322331333132313331322121133133313331333133112322121
<<
B33113313132313113313223313331323133313221211331333133313331331123221213
>>
B33113313132313113313223313331323133313221211331333133313331331123221212
>>