B3311331313231311331322331333132313231333133313311211111211113313121112111
>>
B331133131323131133132233133313231323133313331331121111121111331312111211
<<
B3311331313231311331322331333132313231333133313311211111211113313121112113
>>
B3311331313231311331322331333132313231333133313311211111211113313121112112
>>