B3311331313231311331322331333132313231323331333131133131133132321123231121
>>
B331133131323131133132233133313231323132333133313113313113313232112323112
<<
B3311331313231311331322331333132313231323331333131133131133132321123231123
>>
B3311331313231311331322331333132313231323331333131133131133132321123231122
>>