C31232233133313221211113313331333133313331212111133131311331121211   >>    C3123223313331322121111331333133313331333121211113313131133112121   <<    C31232233133313221211113313331333133313331212111133131311331121213   >>      C31232233133313221211113313331333133313331212111133131311331121212   >>