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fun checkSameCharacters(text: String): String {
    val map = mutableSetOf<Char>()
    var onlyUniqueChars = true
    run loop@{
        text.forEach {
            if (map.contains(it)) {
                onlyUniqueChars = false
                return@loop
            } else {
                map.add(it)
            }
        }
    }
    return if (onlyUniqueChars) text.reversed() else text
}