C13112133313331323321333133313331333131211113313331333133313121211321   >>    C1311213331333132332133313331333133313121111331333133313331312121132   <<    C13112133313331323321333133313331333131211113313331333133313121211323   >>      C13112133313331323321333133313331333131211113313331333133313121211322   >>