Kotlin code showing simple computer before coroutines

demo_no_coroutines.kt

package test.coroutines

fun computeA(): Int {
  Thread.sleep(2_000)  //simulate work
  return 10
}

fun computeB(): Int {
  Thread.sleep(2_000) //simulate work
  return 5
}

fun computer(): Int {
  val partA = computeA()
  val partB = computeB()
  return partA + partB
}  

val total = computer() // = 15