Loops and String Interpolation

The part where the code says

should be

I think it’s a Swift 1.2 vs. Swift 2.0 Problem.
I can’t tell the page cause I got an eletronic version of the book

I checked the Loops and String Interpolation about nameByParkingSpace. I type the Swift with MyPlayground about nameByParkingSpace with Alice and Bob. I see output it said two times and it show me "Space 1: (13, “Alice”) not show up for 27: “Bob”. I read the book figure 2.5 and i see two lists.