C31232233133313221211113313331333133313331212111133133313133231322311   >>    C3123223313331322121111331333133313331333121211113313331313323132231   <<    C31232233133313221211113313331333133313331212111133133313133231322313   >>      C31232233133313221211113313331333133313331212111133133313133231322312   >>