B331133131323131133132233133313231323133313331331123231323132313232233132211
>>
B33113313132313113313223313331323132313331333133112323132313231323223313221
<<
B331133131323131133132233133313231323133313331331123231323132313232233132213
>>
B331133131323131133132233133313231323133313331331123231323132313232233132212
>>