B331133131323131133132233133313231313231333132322331333132313231322132211
>>
B33113313132313113313223313331323131323133313232233133313231323132213221
<<
B331133131323131133132233133313231313231333132322331333132313231322132213
>>
B331133131323131133132233133313231313231333132322331333132313231322132212
>>