C31232233133313221211113313331333133313331212111133133313311211132233131   >>    C3123223313331322121111331333133313331333121211113313331331121113223313   <<    C31232233133313221211113313331333133313331212111133133313311211132233133   >>      C31232233133313221211113313331333133313331212111133133313311211132233132   >>