C31232233133313221211113313331333133313331212111112111133232222321   >>    C3123223313331322121111331333133313331333121211111211113323222232   <<    C31232233133313221211113313331333133313331212111112111133232222323   >>      C31232233133313221211113313331333133313331212111112111133232222322   >>