B3311331313231311331322331333132313233313233213331333132313331323222121211
>>
B331133131323131133132233133313231323331323321333133313231333132322212121
<<
B3311331313231311331322331333132313233313233213331333132313331323222121213
>>
B3311331313231311331322331333132313233313233213331333132313331323222121212
>>