B331133131323131133132233133313231333132233132313331333132313333311111
>>
B33113313132313113313223313331323133313223313231333133313231333331111
<<
B331133131323131133132233133313231333132233132313331333132313333311113
>>
B331133131323131133132233133313231333132233132313331333132313333311112
>>