C11112331312111112111133133313331333132323213331333133313333222221   >>    C1111233131211111211113313331333133313232321333133313331333322222   <<    C11112331312111112111133133313331333132323213331333133313333222223   >>      C11112331312111112111133133313331333132323213331333133313333222222   >>