B3311331313231311331322331333131133133313111333133313331323211232313231211
>>
B331133131323131133132233133313113313331311133313331333132321123231323121
<<
B3311331313231311331322331333131133133313111333133313331323211232313231213
>>
B3311331313231311331322331333131133133313111333133313331323211232313231212
>>