Can someone help me debug this playground program on xcode?

import UIKit

var names = ["Anne","Gary", "Keith"]

print(names[names.count])

var numbers = [1, 3, 5, 6.8, 9.5] print(numbers[numbers.count-1])

var myArray = [0]

print(myArray[0])

if myArray.isEmpty { print("the array is empty") } else { print("The array is not empty") }

names.append("Tom")

names.append("Jennifer")

numbers.append(12)

names.insert("Sam", at: 3)

let myNumbers = [1, 2] numbers.remove(at: myNumbers.count)