#nowarn "40"
let ``No.7 プライムナンバーゲーム`` () =
    let rec primes = 
        Seq.cache <| seq { yield 2; yield! Seq.unfold nextPrime 3 }
    and nextPrime n =
        if isPrime n then Some(n, n + 2) else nextPrime(n + 2)
    and isPrime n =
        if n >= 2 then
            primes
            |> Seq.tryFind (fun x -> n % x = 0 || x * x > n)
            |> fun x -> x.Value * x.Value > n
        else false
    let f N =
        let dp = [| yield 1; yield 1; for i in 2..N -> 0; |]
        let ps = primes |> Seq.takeWhile ((>=)N) |> Seq.toList
        let rec f i = function
            | p::ps ->
                if p <= i then
                    if dp.[i-p] = 0 then dp.[i] <- 1
                    else f i ps
            | [] -> ()
        for i in 2..N do f i ps
        dp.[N]
    printfn "%s" ["Lose";"Win"].[f (int(stdin.ReadLine()))]
``No.7 プライムナンバーゲーム`` ()