B331133131323131133132233133313231323133313331331123231333132212312121
>>
B33113313132313113313223313331323132313331333133112323133313221231212
<<
B331133131323131133132233133313231323133313331331123231333132212312123
>>
B331133131323131133132233133313231323133313331331123231333132212312122
>>