C11112331312111112111133133313331333133313123313331322131131211   >>    C1111233131211111211113313331333133313331312331333132213113121   <<    C11112331312111112111133133313331333133313123313331322131131213   >>      C11112331312111112111133133313331333133313123313331322131131212   >>