B33113313132313113313223313331323132313331333133112323133313233313232213231211
>>
B3311331313231311331322331333132313231333133313311232313331323331323221323121
<<
B33113313132313113313223313331323132313331333133112323133313233313232213231213
>>
B33113313132313113313223313331323132313331333133112323133313233313232213231212
>>