B3311331313231311331322331333132313331121131211111211113313331333131133121131
>>
B331133131323131133132233133313231333112113121111121111331333133313113312113
<<
B3311331313231311331322331333132313331121131211111211113313331333131133121133
>>
B3311331313231311331322331333132313331121131211111211113313331333131133121132
>>