B331133131323131133132233133313231323133313331331121111113121111331312312111
>>
B33113313132313113313223313331323132313331333133112111111312111133131231211
<<
B331133131323131133132233133313231323133313331331121111113121111331312312113
>>
B331133131323131133132233133313231323133313331331121111113121111331312312112
>>