B3311331313231311331322331333131133133313111333133313331323131133132213121
>>
B331133131323131133132233133313113313331311133313331333132313113313221312
<<
B3311331313231311331322331333131133133313111333133313331323131133132213123
>>
B3311331313231311331322331333131133133313111333133313331323131133132213122
>>