let name = "Alice"
let age = 30
let pi = 3.14159

name
age
pi

let greeting = "Hello, " + name
greeting

let x = 10
let y = 20
let sum = x + y
sum

"Hello World"
'A'
"String with \"quotes\""

let multiline = "Line 1\nLine 2"
multiline

let empty = ""
empty

let number_str = "42"
number_str