B3311331313231311331322331333132313231323331333131133133112323331312121
>>
B331133131323131133132233133313231323132333133313113313311232333131212
<<
B3311331313231311331322331333132313231323331333131133133112323331312123
>>
B3311331313231311331322331333132313231323331333131133133112323331312122
>>