val numbers = arrayOf(11, 2, 5, 7, 3)
numbers.sort()
//numbers is { 2, 3, 5, 7, 11 }
numbers.forEach { print("$it ") }
println()
//descending
numbers.sortDescending()
//numbers is { 11, 7, 5, 3, 2 }
print("descending: ")
numbers.forEach { print("$it ") }