C11112331312111112111133133313331333133313123313331331121322311   >>    C1111233131211111211113313331333133313331312331333133112132231   <<    C11112331312111112111133133313331333133313123313331331121322313   >>      C11112331312111112111133133313331333133313123313331331121322312   >>