C31232233133313221211113313331333133313331212111112113313122332311   >>    C3123223313331322121111331333133313331333121211111211331312233231   <<    C31232233133313221211113313331333133313331212111112113313122332313   >>      C31232233133313221211113313331333133313331212111112113313122332312   >>