B3311331313231311331322331333132313231323132313133313231333132212112121
>>
B331133131323131133132233133313231323132313231313331323133313221211212
<<
B3311331313231311331322331333132313231323132313133313231333132212112123
>>
B3311331313231311331322331333132313231323132313133313231333132212112122
>>