Swift: Add 2 numbers using function or closure

import Cocoa

/* Swift: Add 2 numbers using function */
func addNumbers(num1: Int, num2: Int) -> Int {
    return num1 + num2
}

print(addNumbers(num1: 1, num2: 2))

/* Swift: Add 2 numbers using closure */

let addNumbersClosure = { (num1: Int, num2: Int) -> Int in
    return num1 + num2
}

print(addNumbersClosure(1, 2))

Output