C11112331312111112111133133313331333132323133313331333133313123313232232321   >>    C1111233131211111211113313331333133313232313331333133313331312331323223232   <<    C11112331312111112111133133313331333132323133313331333133313123313232232323   >>      C11112331312111112111133133313331333132323133313331333133313123313232232322   >>