C31232233133313221211113313331333133313113311331333133313121133112122121
>>
C3123223313331322121111331333133313331311331133133313331312113311212212
<<
C31232233133313221211113313331333133313113311331333133313121133112122123
>>
C31232233133313221211113313331333133313113311331333133313121133112122122
>>