B33113313132313113313223313331323133313223313231333133313223113313132313231211
>>
B3311331313231311331322331333132313331322331323133313331322311331313231323121
<<
B33113313132313113313223313331323133313223313231333133313223113313132313231213
>>
B33113313132313113313223313331323133313223313231333133313223113313132313231212
>>