B3311331313231311331322331333132313132313331323223313133313331323132213331
>>
B331133131323131133132233133313231313231333132322331313331333132313221333
<<
B3311331313231311331322331333132313132313331323223313133313331323132213333
>>
B3311331313231311331322331333132313132313331323223313133313331323132213332
>>