require 'prime'

# 素数列挙
prime_generator = Prime::EratosthenesGenerator.new
@primes = []
begin ; @primes << prime_generator.next ; end while @primes[-1]<10000

@a = Array.new(10010)
@a[0] = true
@a[1] = true

# win?(num) numは先手必勝か後手必勝
def win?(n)
    @primes.each{|k|
        return false if n-k<0
        return true if !@a[n-k]
    }
    return false
end

2.upto(10000){|i|
    @a[i] = win?(i)
}

puts @a[gets.to_i] ? "Win" : "Lose"