C11112331312111112111133133313331333132323213331333133313331312313112113231   >>    C1111233131211111211113313331333133313232321333133313331333131231311211323   <<    C11112331312111112111133133313331333132323213331333133313331312313112113233   >>      C11112331312111112111133133313331333132323213331333133313331312313112113232   >>