B331133131323131133132233133313231323133313331331123231333132311331323121111
>>
B33113313132313113313223313331323132313331333133112323133313231133132312111
<<
B331133131323131133132233133313231323133313331331123231333132311331323121113
>>
B331133131323131133132233133313231323133313331331123231333132311331323121112
>>