B331133131323131133132233133313231333132333131211113313231333133313233213121121
>>
B33113313132313113313223313331323133313233313121111331323133313331323321312112
<<
B331133131323131133132233133313231333132333131211113313231333133313233213121123
>>
B331133131323131133132233133313231333132333131211113313231333133313233213121122
>>