C31232233133313221211113313331333133313311211231211113313132131   >>    C3123223313331322121111331333133313331331121123121111331313213   <<    C31232233133313221211113313331333133313311211231211113313132133   >>      C31232233133313221211113313331333133313311211231211113313132132   >>