C31232233133313221211113313331333133313331212111112111112133313132333131   >>    C3123223313331322121111331333133313331333121211111211111213331313233313   <<    C31232233133313221211113313331333133313331212111112111112133313132333133   >>      C31232233133313221211113313331333133313331212111112111112133313132333132   >>