C11112331312111112111133133313331333132323213331333133313122121111112132321   >>    C1111233131211111211113313331333133313232321333133313331312212111111213232   <<    C11112331312111112111133133313331333132323213331333133313122121111112132323   >>      C11112331312111112111133133313331333132323213331333133313122121111112132322   >>