B331133131323131133132233133313231313231333132322331333131133131211111
>>
B33113313132313113313223313331323131323133313232233133313113313121111
<<
B331133131323131133132233133313231313231333132322331333131133131211113
>>
B331133131323131133132233133313231313231333132322331333131133131211112
>>