C11112331312111112111133133313331333133313123313331331121121132231   >>    C1111233131211111211113313331333133313331312331333133112112113223   <<    C11112331312111112111133133313331333133313123313331331121121132233   >>      C11112331312111112111133133313331333133313123313331331121121132232   >>