C13112133313331323321333133313331333131211113313331323133311321   >>    C1311213331333132332133313331333133313121111331333132313331132   <<    C13112133313331323321333133313331333131211113313331323133311323   >>      C13112133313331323321333133313331333131211113313331323133311322   >>