C13112133313331323321333133313331333131211113313331333133313231323322321   >>    C1311213331333132332133313331333133313121111331333133313331323132332232   <<    C13112133313331323321333133313331333131211113313331333133313231323322323   >>      C13112133313331323321333133313331333131211113313331333133313231323322322   >>