n = gets.to_i

def prime?(n)
  root_n = Math.sqrt(n).to_i
  2.upto(n).each do |i|
    break if i > root_n
    return false if n % i == 0
  end
  true
end

def calc(target_number, n, primes, game)
  target_primes = primes.select {|prime| prime < target_number}
  game[target_number] = target_primes.any? do |prime|
    minus_number = target_number - prime
    next false if [0, 1].include?(minus_number)
    !game[minus_number]
  end
  game
end

def play_game(n)
  case n
  when *[0, 1, 2, 3, 4]
    false
  when 5
    true
  else
    primes = 2.upto(n).select do |i|
      prime?(i)
    end
    game = [false, false, false, false, false, true]
    2.upto(n).each do |i|
      game = calc(i, n, primes, game)
    end
    game[n]
  end
end

result = play_game(n)
puts result ? 'Win' : 'Lose'