B331133131323131133132233133313223132313231323133313132313231111
>>
B33113313132313113313223313331322313231323132313331313231323111
<<
B331133131323131133132233133313223132313231323133313132313231113
>>
B331133131323131133132233133313223132313231323133313132313231112
>>