B331133131323131133132233133313231333132333131211113313231333133313332211212121
>>
B33113313132313113313223313331323133313233313121111331323133313331333221121212
<<
B331133131323131133132233133313231333132333131211113313231333133313332211212123
>>
B331133131323131133132233133313231333132333131211113313231333133313332211212122
>>