B3311331313231311331322331333131133133313233213231333133313113313231331121311
>>
B331133131323131133132233133313113313331323321323133313331311331323133112131
<<
B3311331313231311331322331333131133133313233213231333133313113313231331121313
>>
B3311331313231311331322331333131133133313233213231333133313113313231331121312
>>