B331133131323131133132233133313231313331311331311331323223313232212323131121
>>
B33113313132313113313223313331323131333131133131133132322331323221232313112
<<
B331133131323131133132233133313231313331311331311331323223313232212323131123
>>
B331133131323131133132233133313231313331311331311331323223313232212323131122
>>