C31232233133313221211113313331333133313311211231211113313331133132313211311   >>    C3123223313331322121111331333133313331331121123121111331333113313231321131   <<    C31232233133313221211113313331333133313311211231211113313331133132313211313   >>      C31232233133313221211113313331333133313311211231211113313331133132313211312   >>