C13112133313331323321333133313331333131211113313331333133313331333131122113321   >>    C1311213331333132332133313331333133313121111331333133313331333133313112211332   <<    C13112133313331323321333133313331333131211113313331333133313331333131122113323   >>      C13112133313331323321333133313331333131211113313331333133313331333131122113322   >>