object Main extends App {
  def toRange(s: String, base: Int = 10): Range = {
    val arr = s.split(" ")
    Range.inclusive(Integer.parseInt(arr(0), base), Integer.parseInt(arr(1), base))
  }
 
  def isKaprekar(i: Int): Boolean = {
    val str = math.pow(i, 2).toInt.toString
    val ret = for {
      c <- 1 to (str.length - 1)
      part1 = str.slice(0, c).toInt
      part2 = str.slice(c, str.length).toInt
    } yield (part1 != 0 && part2 != 0 && i == part1 + part2)
    ret.contains(true)
  }
 
  Seq("2 100", "101 9000").foreach(s => println(toRange(s).filter(isKaprekar).mkString(" ")))
}

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