B331133131323131133132233133313231323331323133313133313231333132322333121121131
>>
B33113313132313113313223313331323132333132313331313331323133313232233312112113
<<
B331133131323131133132233133313231323331323133313133313231333132322333121121133
>>
B331133131323131133132233133313231323331323133313133313231333132322333121121132
>>