object Main extends App {
  def fc(n:Int, i:Int = 2):Int = 
    if (i*i>n) 0 
    else if (n%i==0) fc(n/i,i)+1 
    else fc(n,i+1)
 
  val set=(4 to 196).filter(n => (2 to n/2).map(k => fc(k*(n-k))).min>=2).toSet
 
  def fp(n :Int, i:Int = 2):List[(Int,Int)] =
    if (i*i>n) Nil
    else if (n%i==0 && set.contains(i+n/i)) (i,n/i) :: fp(n,i+1)
    else fp(n,i+1)
 
  val map=(4 to 99*99).map(fp(_)).filter(_.length==1).groupBy(el => el.head._1+el.head._2)
 
  println(map.filter(_._2.length==1).head._2(0)(0))
}

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