#include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define rep(i,n) for(int i=0;i<=(n);i++) bool isprime[10010]; //エラトステネス void eratos(int m){ for (int i = 0; i <= m; ++i) isprime[i] = true; isprime[0] = isprime[1] = false; //iを残してiの倍数を消していく for (int i = 2; i <= m; ++i){ if(isprime[i]){ for (int j = 2 * i; j <= m; j += i){ isprime[j] = false; } } } } int dp[10010]; int grundy(int x){ if(dp[x] != -1) return dp[x]; if(x == 2 || x == 3) return dp[x] = 0;//負け set s; for (int i = 2; i <= x; ++i){ if(isprime[i] && x - i >= 2){ s.insert(grundy(x - i)); } } int res = 0; while(s.count(res)){ res++; } return dp[x] = res; } int main(void){ int n; cin >> n; eratos(n); rep(i, 10009)dp[i] = -1; int x = 0; rep(i,n){ if(isprime[n]){ continue; } if(isprime[i]){ x ^= dp[n-i]; } } if(x != 0){ printf("Lose\n"); }else{ printf("Win\n"); } return 0; }