B331133131323131133132233133313231313331311331323223313133313232211111
>>
B33113313132313113313223313331323131333131133132322331313331323221111
<<
B331133131323131133132233133313231313331311331323223313133313232211113
>>
B331133131323131133132233133313231313331311331323223313133313232211112
>>