B3311331313231311331322331333132313231323331333131123313331322132312131
>>
B331133131323131133132233133313231323132333133313112331333132213231213
<<
B3311331313231311331322331333132313231323331333131123313331322132312133
>>
B3311331313231311331322331333132313231323331333131123313331322132312132
>>