import scala.util.Random

object foo extends App {
val seed = 564745757658568567l
val Random1 = new Random(seed)
val Random2 = new Random(seed)

val input = List(1,2,3,4,5,6,7) // 54,43,65,76,87,98
def shuffle(i:List[Int]):List[Int] = {
  val rng = new Random(seed)
  i.map(x => (x ^ rng.nextInt(999999)))
}

val shuffled = shuffle(input)
println(shuffled)
println(shuffle(shuffled))
}