C31232233133313221211113313331333133313311211231211113313222212311   >>    C3123223313331322121111331333133313331331121123121111331322221231   <<    C31232233133313221211113313331333133313311211231211113313222212313   >>      C31232233133313221211113313331333133313311211231211113313222212312   >>