func doSomething(num1: Int, num2: Int) -> Int {
    return num1 + num2
}

doSomething(1, 2)

class A {
    func foo(#num1: Int, num2: Int) {
    
    }
    
    func objectAtIndex(num: Int forArray array: Int) {
    
    }
}

var a = A()

a.foo(num1: 1, num2: 12)

a.objectAtIndex(12, forArray: 12)