B3311331313231311331322331333132313233313231333131323223313231313232212311
>>
B331133131323131133132233133313231323331323133313132322331323131323221231
<<
B3311331313231311331322331333132313233313231333131323223313231313232212313
>>
B3311331313231311331322331333132313233313231333131323223313231313232212312
>>