C11112331312111112111133133313331333132323213331333133312332221   >>    C1111233131211111211113313331333133313232321333133313331233222   <<    C11112331312111112111133133313331333132323213331333133312332223   >>      C11112331312111112111133133313331333132323213331333133312332222   >>