open System
 
let input () = stdin.ReadLine()
 
let n = input () |> int
let a = input ()
let b = input ()
 
let p i = a.[i] = 'o' && b.[i] = 'o'
 
if Seq.exists p [ 0..n - 1 ] then "Lucky Turtleman" else "Unlucky Turtleman"
|> printfn "%s"