B3311331313231311331322331333131133133313233213231333133313133313231323222321
>>
B331133131323131133132233133313113313331323321323133313331313331323132322232
<<
B3311331313231311331322331333131133133313233213231333133313133313231323222323
>>
B3311331313231311331322331333131133133313233213231333133313133313231323222322
>>