B3311331313231311331322331333131133133313231211331333132313231313121
>>
B331133131323131133132233133313113313331323121133133313231323131312
<<
B3311331313231311331322331333131133133313231211331333132313231313123
>>
B3311331313231311331322331333131133133313231211331333132313231313122
>>