let you = "You"
let str1 = "\(you) can insert variables into strings."
let str2 = "Swift also supports unicode in strings ı∫ƒ∂ß´™¡à"
let str3 = "Swift also supports control characters \n\tLike this"
let str4 = "'" // '
let str5 = "\"" // "
println(str3)