B3311331313231311331322331333131133133313111333133313231323131133132232311
>>
B331133131323131133132233133313113313331311133313331323132313113313223231
<<
B3311331313231311331322331333131133133313111333133313231323131133132232313
>>
B3311331313231311331322331333131133133313111333133313231323131133132232312
>>