C13112133313331323321333133313331333131211113313331333133313331311312112111   >>    C1311213331333132332133313331333133313121111331333133313331333131131211211   <<    C13112133313331323321333133313331333131211113313331333133313331311312112113   >>      C13112133313331323321333133313331333131211113313331333133313331311312112112   >>