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import scala.util.Random
 
object Main extends App {
  def msort[A <% Ordered[A]](a: List[A]): List[A] = a match {
    case x :: Nil => a
    case _ =>
      val (l, r) = a.splitAt(a.length / 2)
      merge(msort(l), msort(r))
  }
 
  def merge[A <% Ordered[A]](a: List[A], b: List[A]): List[A] =
    (a, b) match {
      case (x :: xs, y :: ys) if x < y => x :: merge(xs, b)
      case (x :: xs, y :: ys)          => y :: merge(a, ys)
      case (Nil, _) => b
      case _        => a
    }
 
  msort(List.fill(1000)(Random.nextInt))
}

Runtime error #stdin #stdout #stderr 0.46s 322432KB

stdin

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Standard input is empty

stdout

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Standard output is empty

stderr

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Exception in thread "main" java.lang.StackOverflowError
	at scala.runtime.BoxesRunTime.boxToInteger(BoxesRunTime.java:65)
	at scala.runtime.RichInt.self(RichInt.scala:16)
	at scala.runtime.OrderedProxy$class.compare(ScalaNumberProxy.scala:76)
	at scala.runtime.RichInt.compare(RichInt.scala:16)
	at scala.math.Ordered$class.$less(Ordered.scala:76)
	at scala.runtime.RichInt.$less(RichInt.scala:16)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:14)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
	at Main$.merge(Main.scala:13)
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	at Main$.merge(Main.scala:14)

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