let a:String = "a" as String
let b:String = "b" as String
let c:String = "c" as String
let d:String = "d" as String
let e:String = "e" as String
let n:Int = 11 as Int
print((a + b + c) + n + d + e)
...has the long timeout, while:
let a:String = "a" as String
let b:String = "b" as String
let c:String = "c" as String
let d:String = "d" as String
let e:String = "e" as String
let n:Int = 11 as Int
print((a + b + c) as String + n + d + e)
(I’m not sure of the precedence, that might need another pair of parens)