B33113313132313113313223313331323132313233313331311213331323133313232211121
>>
B3311331313231311331322331333132313231323331333131121333132313331323221112
<<
B33113313132313113313223313331323132313233313331311213331323133313232211123
>>
B33113313132313113313223313331323132313233313331311213331323133313232211122
>>