B331133131323131133132233133313231323223313132313231333132313232213311
>>
B33113313132313113313223313331323132322331313231323133313231323221331
<<
B331133131323131133132233133313231323223313132313231333132313232213313
>>
B331133131323131133132233133313231323223313132313231333132313232213312
>>