C11112331312111112111133133313331333133313123313331322123323221   >>    C1111233131211111211113313331333133313331312331333132212332322   <<    C11112331312111112111133133313331333133313123313331322123323223   >>      C11112331312111112111133133313331333133313123313331322123323222   >>