measureTimeMillis

import samples.*
import kotlin.system.*
fun main() { 
   //sampleStart 
   val numbers: List<Int>
val timeInMillis = measureTimeMillis {
    numbers = buildList {
        addAll(0..100)
        shuffle()
        sortDescending()
    }
}
// here numbers are initialized and sorted
assertPrints(numbers.first(), "100")

println("(The operation took $timeInMillis ms)") 
   //sampleEnd
}