B3311331313231311331322331333131133133313221211113313112113313232213223331
>>
B331133131323131133132233133313113313331322121111331311211331323221322333
<<
B3311331313231311331322331333131133133313221211113313112113313232213223333
>>
B3311331313231311331322331333131133133313221211113313112113313232213223332
>>