B331133131323131133132233133313232213232233132313232233132313231232311
>>
B33113313132313113313223313331323221323223313231323223313231323123231
<<
B331133131323131133132233133313232213232233132313232233132313231232313
>>
B331133131323131133132233133313232213232233132313232233132313231232312
>>