C31232233133313221211113313331333133313331212111133121111121133223311   >>    C3123223313331322121111331333133313331333121211113312111112113322331   <<    C31232233133313221211113313331333133313331212111133121111121133223313   >>      C31232233133313221211113313331333133313331212111133121111121133223312   >>