B331133131323131133132233133313231313331311331311331323223313231323131323332321
>>
B33113313132313113313223313331323131333131133131133132322331323132313132333232
<<
B331133131323131133132233133313231313331311331311331323223313231323131323332323
>>
B331133131323131133132233133313231313331311331311331323223313231323131323332322
>>