#include "bits/stdc++.h"

using ll = long long;

using namespace std;
#define int ll

//0 -> a-1
#define rep(i, a) for (int i = 0; (i) < (int)(a); (i)++)
//a -> b-1
#define reps(i, a, b) for (int i = (int)(a); (i) < (int)(b); (i)++)
//a-1 -> 0
#define rrep(i, a) for (int i = (int)a - 1; (i) >= 0; (i)--)
//a-1 -> b
#define rreps(i, a, b) for (int i = (int)(a)-1; (i) >= (int)(b); (i)--)
#define MP(a, b) make_pair((a), (b))
#define PB(a) push_back((a))
#define all(v) (v).begin(), (v).end()
//next_permutation(all(v))
#define PERM(v) next_permutation(all(v))
/*sort(all(v));
(v).erase(unique(all(v)), v.end())*/
#define UNIQUE(v) \
	sort(all(v)); \
	(v).erase(unique(all(v)), v.end())
#define CIN(type, x) \
	type x;          \
	cin >> x
#define YES(f) if ((f)) {cout << "YES" << endl;} else {cout << "NO" << endl;}
#define Yes(f) if ((f)) {cout << "Yes" << endl;} else {cout << "No" << endl;}
#define MINV(v) min_element(all(v))
#define MAXV(v) max_element(all(v))
#define MIN3(a, b, c) min(min(a, b), c)
#define MIN4(a, b, c, d) min(MIN3(a, b, c), d)
#define MIN5(a, b, c, d, e) min(MIN4(a, b, c, d), e)
#define MIN6(a, b, c, d, e, f) min(MIN5(a, b, c, d, e), f)
#define MAX3(a, b, c) max(max(a, b), c)
#define MAX4(a, b, c, d) max(MAX3(a, b, c), d)
#define MAX5(a, b, c, d, e) max(MAX4(a, b, c, d), e)
#define MAX6(a, b, c, d, e, f) max(MAX5(a, b, c, d, e), f)
//b is [a, c)
#define RANGE(a, b, c) ((a) <= (b) && (b) < (c))
//c is [a, e) && d is [b, f)
#define RANGE2D(a, b, c, d, e, f) (RANGE((a), (c), (e)) && RANGE((b), (d), (f)))
#define chmin(a, b) a = min(a, (b))
#define chmin3(a, b, c) a = MIN3(a, (b), (c))
#define chmin4(a, b, c, d) a = MIN4(a, (b), (c), (d))
#define chmin5(a, b, c, d, e) a = MIN5(a, (b), (c), (d), (e))
#define chmin6(a, b, c, d, e, f) a = MIN6(a, (b), (c), (d), (e), (f))
#define chmax(a, b) a = max(a, (b))
#define chmax3(a, b, c) a = MAX3(a, (b), (c))
#define chmax4(a, b, c, d) a = MAX4(a, (b), (c), (d))
#define chmax5(a, b, c, d, e) a = MAX5(a, (b), (c), (d), (e))
#define chmax6(a, b, c, d, e, f) a = MAX6(a, (b), (c), (d), (e), (f))
#define fcout cout << fixed << setprecision(12)
#define RS resize
#define CINV(v, N)             \
	do                         \
	{                          \
		v.RS(N);               \
		rep(i, N) cin >> v[i]; \
	} while (0);

#define RCINV(v, N)             \
	do                          \
	{                           \
		v.RS(N);                \
		rrep(i, N) cin >> v[i]; \
	} while (0);
#define MOD 1000000007

template <class T>
inline T GET()
{
	T x;
	cin >> x;
	return x;
}

void init();
void solve();

signed main()
{
	init();
	solve();
}

template<class T, char d='\n'>
struct Vector {
	vector<T> v;
	Vector(int sz) : v(sz) {}
	Vector(int sz, T t) : v(sz, t) {}
	Vector() : v(0) {}
	Vector(vector<T> t) : v(t) {}
	inline auto begin() {return v.begin();}
	inline auto end() {return v.end();}
	inline auto rbegin() {return v.rbegin();}
	inline auto rend() {return v.rend();}
	inline int size() {return v.size();}
	inline auto resize(int sz) {v.resize(sz);}
	inline auto resize(int sz, T t) {v.resize(sz, t);}
	inline auto empty() {v.empty();}
	inline auto reserve(int sz) {v.reserve(sz);}
	inline auto push_back(T t) {v.push_back(t);}
	inline auto pop_back() {v.pop_back();}
	inline auto assign(int sz, const T& t) {v.assign(sz, t);}
	inline auto& front() {return v.front();}
	inline auto& back() {return v.back();}
	inline auto insert(const auto p, const T& t) {v.insert(p, t);}
	inline auto insert(const auto p, auto f, auto l) {v.insert(p, f, l);}
	inline auto erase(const auto p) {v.erase(p);}
	inline auto erase(const auto f, const auto s) {v.erase(f, s);}
	inline auto emplace_back(auto t) {v.emplace_back(t);}
	inline auto swap(auto& f) {v.swap(f.v);}
	inline auto clear() {v.clear();}
	inline auto& operator[](size_t pos) {return v[pos];}
	inline auto operator<(const auto& a) {return v < a.v;}
	inline auto operator>(const auto& a) {return a < (*this);}
	inline auto operator>=(const auto& a) {return !((*this) < a);}
	inline auto operator<=(const auto& a) {return !(a < (*this));}
	inline auto operator==(const auto& a) {return !(a < (*this)) && !((*this) < a);}
	inline friend istream& operator>>(istream& lhs, Vector& rhs) {
		for (auto& x : rhs) lhs >> x;
		return lhs;
	}
	inline friend ostream& operator<<(ostream& lhs, Vector& rhs) {
		for (int i = 0; i + 1 < rhs.size(); i++) lhs << rhs[i] << d;
		if (rhs.size()) lhs << rhs.back();
		return lhs;
	}
	inline auto make_accumulate_sum(T init) {
		Vector<T> res;
		res.push_back(init);
		for (auto x : v) {
			auto y = res.back();
			res.push_back(y + x);
		}
		return res;
	}
};

map<int, int> d;
template<int mod> struct ModInt {
	using ll = long long;
	int x;
	template<class T>
	ModInt(T a) {
		x = a % mod;
		if (x < 0) {
			x += mod;
		}
	}
	ModInt() : x(0) {}
	inline ModInt& operator+=(const ModInt& rhs)
	{
		(*this) += rhs.x;
		return *this;
	}
	template<class T>
	inline ModInt& operator+=(const T rhs)
	{
		x += rhs % mod;
		if (x < 0) x += mod;
		x %= mod;
		return *this;
	}
	inline ModInt& operator-=(const ModInt& rhs)
	{
		(*this) -= rhs.x;
		return *this;
	}
	template<class T>
	inline ModInt& operator-=(const T rhs)
	{
		x -= rhs % mod;
		if (x < 0) x += mod;
		x %= mod;
		return *this;
	}
	inline ModInt& operator*=(const ModInt& rhs)
	{
		(*this) *= rhs.x;
		return *this;
	}
	template<class T>
	inline ModInt& operator*=(const T rhs)
	{
		ll res = (ll) x * (rhs % mod);
		x = res % mod;
		if (x < 0) x += mod;
		return *this;
	}
	inline ModInt& operator/=(const ModInt& rhs)
	{
		(*this) /= rhs.x;
		return *this;
	}
	template<class T>
	inline ModInt& operator/=(const T rhs)
	{
		int t = rhs % mod;
		if (t < 0) t += mod;
        if (d.count(t)) {
            (*this) *= d[t];
        } else {
            int res = modpow(t);
            (*this) *= res;
            d[t] = res;
        }
		return *this;
	}
	inline ModInt& operator=(const ModInt& rhs)
	{
		(*this) = rhs.x;
		return *this;
	}
	template<class T>
	inline ModInt& operator=(const T rhs)
	{
		x = rhs % mod;
		if (x < 0) x += mod;
		return *this;
	}
	inline int operator==(const ModInt& rhs) const
	{
		return (*this) == rhs.x;
	}
	template<class T>
	inline int operator==(const T rhs) const
	{
		ModInt t(rhs);
		return (*this).x == t.x;
	}
	inline int operator!=(const ModInt& rhs) const
	{
		return (*this) != rhs.x;
	}
	inline int operator!=(const int rhs) const
	{
		ModInt t(rhs);
		return (*this).x != t.x;
	}
	inline ModInt operator++(signed unused)
	{
		ModInt res((*this).x);
		++(*this);
		return res;
	}
	inline ModInt& operator++()
	{
		(*this) += 1;
		return (*this);
	}
	inline ModInt operator--(signed unused)
	{
		ModInt res((*this).x);
		--(*this);
		return res;
	}
	inline ModInt& operator--()
	{
		(*this) -= 1;
		return (*this);
	}
	inline ModInt operator+() const
	{
		return (*this);
	}
	inline ModInt operator-() const
	{
		return (*this).x ? ModInt(mod - (*this).x) : ModInt(0);
	}
	template<class T>
	int modpow(const T val, int p = mod - 2)
	{
		if (p == 0) return 1;
		if (p % 2) return (long long) val * modpow(val, p-1) % mod;
		long long t = modpow(val, p/2);
		int res = t * t % mod;
		return res;
	}
	operator int() const
	{
		return x;
	}
	friend ostream& operator<<(ostream& lhs, const ModInt& rhs)
	{
		lhs << rhs.x;
		return lhs;
	}
	friend istream& operator>>(istream& lhs, ModInt& rhs)
	{
		long long t;
		lhs >> t;
		rhs.x = t % mod;
		if (rhs.x < 0) rhs += mod;
		return lhs;
	}
	friend const ModInt operator+(const ModInt& lhs, const ModInt& rhs)  {return ModInt(lhs) += rhs;}
	template<class T>
	friend const ModInt operator+(const ModInt& lhs, const T rhs)        {return ModInt(lhs) += rhs;}
	template<class T>
	friend const ModInt operator+(T lhs, const ModInt& rhs)              {return ModInt(lhs) += rhs;}
	friend const ModInt operator-(const ModInt& lhs, const ModInt& rhs)  {return ModInt(lhs) -= rhs;}
	template<class T>
	friend const ModInt operator-(const ModInt& lhs, const T rhs)        {return ModInt(lhs) -= rhs;}
	template<class T>
	friend const ModInt operator-(T lhs, const ModInt& rhs)              {return ModInt(lhs) -= rhs;}
	friend const ModInt operator*(const ModInt& lhs, const ModInt& rhs)  {return ModInt(lhs) *= rhs;}
	template<class T>
	friend const ModInt operator*(const ModInt& lhs, const T rhs)        {return ModInt(lhs) *= rhs;}
	template<class T>
	friend const ModInt operator*(T lhs, const ModInt& rhs)              {return ModInt(lhs) *= rhs;}
	friend const ModInt operator/(const ModInt& lhs, const ModInt& rhs)  {return ModInt(lhs) /= rhs;}
	template<class T>
	friend const ModInt operator/(const ModInt& lhs, const T rhs)        {return ModInt(lhs) /= rhs;}
	template<class T>
	friend const ModInt operator/(T lhs, const ModInt& rhs)              {return ModInt(lhs) /= rhs;}
	template<class T>
	friend const int    operator==(T lhs, const ModInt& rhs)             {return ModInt(lhs) == rhs;}
	template<class T>
	friend const int    operator!=(T lhs, const ModInt& rhs)             {return ModInt(lhs) != rhs;}
};
using modint = ModInt<998244353>;

vector<vector<modint>> dp;
vector<vector<modint>> dp2;
vector<vector<bool>> h;
vector<vector<bool>> h2;
Vector<int> a;
modint ha;

modint dfs(int p, int x)
{
	if (x < 0) return 0;
	modint& res = dp[p][x];
	if (h[p][x]) return res;
	h[p][x] = true;
	res = dfs(p-1, x) + dfs(p-1, x - a[p-1]) / 2;
	return res;
}

modint dfs2(int p, int x)
{
	if (x < 0) return 0;
	modint& res = dp2[p][x];
	if (h2[p][x]) return res;
	h2[p][x] = true;
	res = dfs2(p-1, x) + dfs2(p-1, x - a[p-1]);
	return res;
}

void init()
{
	int N;
	cin >> N;
	a.resize(N);
	cin >> a;
	int S = 0;
	rep(i, N) S += a[i];
	ha = 1;
	ha /= 2;
	dp.resize(N+1, vector<modint>(S+1, 0));
	dp2.resize(N+1, vector<modint>(S+1, 0));
	h.resize(N+1, vector<bool>(S+1, false));
	h2.resize(N+1, vector<bool>(S+1, false));
	dp[0][0] = 1;
	rep(i, N) dp[0][0] *= 2;
	rep(i, N+1) dp[i][0] = dp[0][0];
	rep(i, N+1) dp2[i][0] = 1;
	rep(i, N+1) h[i][0] = true;
	rep(i, N+1) h2[i][0] = true;
	reps(i, 1, S+1) h[0][i] = true;
	reps(i, 1, S+1) h2[0][i] = true;
	modint res = 0;
	reps(i, (S + 1) / 2, S+1) {
		res += dfs(N, i);
		if (i + i == S) {
			res -= dfs2(N, i);
		}
	}
	modint al = 1;
	rep(i, N) al *= 3;
	cout << al - res * 3 << endl;
}

void solve()
{
}


Measured memory_bytes: 429760