B3311331313231311331322331333131133133313231133133313331311331311213123231
>>
B331133131323131133132233133313113313331323113313331333131133131121312323
<<
B3311331313231311331322331333131133133313231133133313331311331311213123233
>>
B3311331313231311331322331333131133133313231133133313331311331311213123232
>>