B3311331313231311331322331333131133133313231133133313331311331321123233311
>>
B331133131323131133132233133313113313331323113313331333131133132112323331
<<
B3311331313231311331322331333131133133313231133133313331311331321123233313
>>
B3311331313231311331322331333131133133313231133133313331311331321123233312
>>