B331133131323131133132233133313113313231123313231333133313232213123121
>>
B33113313132313113313223313331311331323112331323133313331323221312312
<<
B331133131323131133132233133313113313231123313231333133313232213123123
>>
B331133131323131133132233133313113313231123313231333133313232213123122
>>