using System; using System.IO; using System.Linq; using System.Text; using System.Diagnostics; using System.Collections.Generic; using System.Text.RegularExpressions; using Enu = System.Linq.Enumerable; class Program { List Primes; bool?[] memo; void Solve() { int N = reader.Int(); Primes = Sieve(N); memo = new bool?[N + 1]; if (Win(N)) Console.WriteLine("Win"); else Console.WriteLine("Lose"); } bool Win(int N) { if (N < 2) return true; if (memo[N].HasValue) return memo[N].Value; bool win = false; foreach (int p in Primes) { if (p > N) break; if (!Win(N - p)) { win = true; break; } } memo[N] = win; return win; } static List Sieve(int n) { List primes = new List(); bool[] composite = new bool[n + 1]; for (int i = 2; i <= n; i++) { if (composite[i]) continue; primes.Add(i); for (int j = i + i; j <= n; j += i) composite[j] = true; } return primes; } Reader reader = new Reader(Console.In); static void Main() { new Program().Solve(); } } class Reader { private readonly TextReader reader; private readonly char[] separator = { ' ' }; private readonly StringSplitOptions removeOp = StringSplitOptions.RemoveEmptyEntries; private string[] A = new string[0]; private int i; public Reader(TextReader r) { reader = r; } public bool HasNext() { return Enqueue(); } public string String() { return Dequeue(); } public int Int() { return int.Parse(Dequeue()); } public long Long() { return long.Parse(Dequeue()); } public double Double() { return double.Parse(Dequeue()); } public int[] IntLine() { var s = Line(); return s == "" ? new int[0] : Array.ConvertAll(Split(s), int.Parse); } public int[] IntArray(int N) { return Enu.Range(0, N).Select(i => Int()).ToArray(); } public int[][] IntGrid(int H) { return Enu.Range(0, H).Select(i => IntLine()).ToArray(); } public string[] StringArray(int N) { return Enu.Range(0, N).Select(i => Line()).ToArray(); } public string Line() { return reader.ReadLine().Trim(); } private string[] Split(string s) { return s.Split(separator, removeOp); } private bool Enqueue() { if (i < A.Length) return true; string line = reader.ReadLine(); if (line == null) return false; if (line == "") return Enqueue(); A = Split(line); i = 0; return true; } private string Dequeue() { Enqueue(); return A[i++]; } }