B331133131323131133132233133313231323132333133313113313231311331322211111
>>
B33113313132313113313223313331323132313233313331311331323131133132221111
<<
B331133131323131133132233133313231323132333133313113313231311331322211113
>>
B331133131323131133132233133313231323132333133313113313231311331322211112
>>