B3311331313231311331322331333132313233313233231333133313232113313232213331
>>
B331133131323131133132233133313231323331323323133313331323211331323221333
<<
B3311331313231311331322331333132313233313233231333133313232113313232213333
>>
B3311331313231311331322331333132313233313233231333133313232113313232213332
>>