B3311331313231311331322331333132313231333133313311211113313221123313232212131
>>
B331133131323131133132233133313231323133313331331121111331322112331323221213
<<
B3311331313231311331322331333132313231333133313311211113313221123313232212133
>>
B3311331313231311331322331333132313231333133313311211113313221123313232212132
>>