B33113313132313113313223313331323131323133313232233133313231323132213231221
>>
B3311331313231311331322331333132313132313331323223313331323132313221323122
<<
B33113313132313113313223313331323131323133313232233133313231323132213231223
>>
B33113313132313113313223313331323131323133313232233133313231323132213231222
>>