B331133131323131133132233133313233313221131211113313331333131211113313113233121
>>
B33113313132313113313223313331323331322113121111331333133313121111331311323312
<<
B331133131323131133132233133313233313221131211113313331333131211113313113233123
>>
B331133131323131133132233133313233313221131211113313331333131211113313113233122
>>