fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


fun readStr () =
    let
        fun scan reader stream = SOME (StringCvt.splitl (not o Char.isSpace) reader (StringCvt.skipWS reader stream))
    in
        valOf (TextIO.scanStream scan TextIO.stdIn)
    end


val () =
    let
        val n = readInt ()
        val a_s = readStr ()
        val b_s = readStr ()

        val ans = if ListPair.exists
                         (fn (a, b) =>
                             a = #"o" andalso b = #"o")
                         (String.explode a_s, String.explode b_s)
                  then "Lucky Turtleman"
                  else "Unlucky Turtleman"
    in
        print (ans ^ "\n")
    end