C11112331312111112111133133313331333132323133313331333133313311211111121132231   >>    C1111233131211111211113313331333133313232313331333133313331331121111112113223   <<    C11112331312111112111133133313331333132323133313331333133313311211111121132233   >>      C11112331312111112111133133313331333132323133313331333133313311211111121132232   >>