B33113313132313113313223313331323132313232113313231333132322132313231211
>>
B3311331313231311331322331333132313231323211331323133313232213231323121
<<
B33113313132313113313223313331323132313232113313231333132322132313231213
>>
B33113313132313113313223313331323132313232113313231333132322132313231212
>>