C11112331312111112111133133313331333133313123313331322311332321   >>    C1111233131211111211113313331333133313331312331333132231133232   <<    C11112331312111112111133133313331333133313123313331322311332323   >>      C11112331312111112111133133313331333133313123313331322311332322   >>