struct Price {
   @ClampedValue var firstPrice: Int
   @ClampedValue var secondPrice: Int

   func printMessage() {
      print("First Price: \(firstPrice)")
      // "First Price: 0"
      print("Second Price: \(secondPrice)")
      // "Second Price: 255"
   }
}
var purchase = Price(firstPrice: -42, secondPrice: 350)
purchase.printMessage()