B331133131323131133132233133313113313331323121133133313231323132213231121
>>
B33113313132313113313223313331311331333132312113313331323132313221323112
<<
B331133131323131133132233133313113313331323121133133313231323132213231123
>>
B331133131323131133132233133313113313331323121133133313231323132213231122
>>