B331133131323131133132233133313231333131211233132313331333131133132312112321
>>
B33113313132313113313223313331323133313121123313231333133313113313231211232
<<
B331133131323131133132233133313231333131211233132313331333131133132312112323
>>
B331133131323131133132233133313231333131211233132313331333131133132312112322
>>