B3311331313231311331322331333132313331323131323223313231323132313331333132211
>>
B331133131323131133132233133313231333132313132322331323132313231333133313221
<<
B3311331313231311331322331333132313331323131323223313231323132313331333132213
>>
B3311331313231311331322331333132313331323131323223313231323132313331333132212
>>