C31232233133313221211113313331333133313331212111112111133112113121321   >>    C3123223313331322121111331333133313331333121211111211113311211312132   <<    C31232233133313221211113313331333133313331212111112111133112113121323   >>      C31232233133313221211113313331333133313331212111112111133112113121322   >>