C31232233133313221211113313331333133313331212111112331121132311   >>    C3123223313331322121111331333133313331333121211111233112113231   <<    C31232233133313221211113313331333133313331212111112331121132313   >>      C31232233133313221211113313331333133313331212111112331121132312   >>