C13112133313331323321333133313331333131211113313331333133313331333133322122221   >>    C1311213331333132332133313331333133313121111331333133313331333133313332212222   <<    C13112133313331323321333133313331333131211113313331333133313331333133322122223   >>      C13112133313331323321333133313331333131211113313331333133313331333133322122222   >>