use std::{collections::HashSet, io}; fn get_primes(max: usize) -> Vec { let mut is_prime = vec![true; max + 1]; is_prime[0] = false; is_prime[1] = false; for n in 2..=max { if !is_prime[n] { continue; } if n * n > max { break; } for i in ((n * n)..=max).step_by(n) { is_prime[i] = false; } } (0..=max).filter(|&n| is_prime[n]).collect() } fn main() { let mut n = String::new(); io::stdin().read_line(&mut n).ok(); let n = n.trim().parse::().unwrap(); let primes = get_primes(n); let mut table = vec![1; n + 1]; for i in 2..=n { let mut reachable = HashSet::new(); for &p in &primes { if p > i { break; } reachable.insert(table[i - p]); } table[i] = (0..=i).find(|n| !reachable.contains(n)).unwrap(); } println!("{}", if table[n] > 0 { "Win" } else { "Lose" }); }