C13112133313331323321333133313331333131211113313331333132233131232321   >>    C1311213331333132332133313331333133313121111331333133313223313123232   <<    C13112133313331323321333133313331333131211113313331333132233131232323   >>      C13112133313331323321333133313331333131211113313331333132233131232322   >>