C31232233133313221211113313331333133313331212111111213331121211   >>    C3123223313331322121111331333133313331333121211111121333112121   <<    C31232233133313221211113313331333133313331212111111213331121213   >>      C31232233133313221211113313331333133313331212111111213331121212   >>