C31232233133313221211113313331333133313331212111133133322133313232121211   >>    C3123223313331322121111331333133313331333121211113313332213331323212121   <<    C31232233133313221211113313331333133313331212111133133322133313232121213   >>      C31232233133313221211113313331333133313331212111133133322133313232121212   >>