#pragma region Macros #include #if defined(LOCAL) || defined(ONLINE_JUDGE) || defined(_DEBUG) #include #endif using namespace std; #define REP(i, n) for(int i=0, i##_len=(n); i=0; --i) #define FOR(i, n, m) for(int i=(m), i##_len=(n); ibool chmax(T &a, const T &b) { if (abool chmin(T &a, const T &b) { if (busing vec = vector; templateusing umap = unordered_map; templateusing uset = unordered_set; using ll = long long; using ld = long double; using P = pair; using T = tuple; using vl = vec; #define fi first #define se second #define el endl constexpr ll INF = numeric_limits::max()/2-1; #pragma endregion #pragma region IOMacros template istream &operator>>(istream &stream, vec& o){REP(i, o.size())stream >> o[i];return stream;} template ostream &operator<<(ostream &stream, vec& objs){REP(i, objs.size())stream << objs[i] << " ";stream << el;return stream;} #define I(T, ...) ;T __VA_ARGS__;__i(__VA_ARGS__); void __i() {} template void __i(T&& o, Ts&&... args){cin >> o;__i(forward(args)...);} void O() {cout << el;} template void O(T&& o, Ts&&... args){cerr << o << " ";O(forward(args)...);} #pragma endregion void Main(); int main(){ std::cin.tie(nullptr); std::cout << std::fixed << std::setprecision(15); Main(); return 0; } void Main(){ I(ll, N); vec isprime(N+1, true); isprime[0] = isprime[1] = false; for(int i=2; i*i<=N; i++){ if(!isprime[i]) continue; for(int j=2; i*j<=N; j++){ isprime[i*j] = false; } } vl prime; REP(i, N+1){ if(isprime[i]){ prime.push_back(i); } } vec nim(N+1, false); nim[0] = nim[1] = true; FOR(i, N+1, 2){ EACH(p, prime){ if(p > i) break; if(!nim[i-p]){ nim[i] = true; break; } } } if(nim[N]){ cout << "Win" << el; }else{ cout << "Lose" << el; } //cerr << nim; }