C31232233133313221211113313331333133313311211231211113313331133131323233231   >>    C3123223313331322121111331333133313331331121123121111331333113313132323323   <<    C31232233133313221211113313331333133313311211231211113313331133131323233233   >>      C31232233133313221211113313331333133313311211231211113313331133131323233232   >>