B331133131323131133132233133313231313231333132322331313231322121
>>
B33113313132313113313223313331323131323133313232233131323132212
<<
B331133131323131133132233133313231313231333132322331313231322123
>>
B331133131323131133132233133313231313231333132322331313231322122
>>