#include<bits/stdc++.h>
using namespace std;

#define dbg(x...)                  \
    do {                           \
        std::cout << #x << " -> "; \
        err(x);                    \
    } while (0)

void err() {
    std::cout << std::endl;
}

template <class T, class... Ts>
void err(T arg, Ts ...args) {
    std::cout << arg << ' ';
    err(args...);
}

using ll = long long;

constexpr int P = 998244353;

void Solve(int tCase) {
    int n;
    cin >> n;
    vector<int> w(n);
    for (int i = 0; i < n; i++) {
        cin >> w[i];
    }
    vector<ll> f(1 << n, 1e10);
    f[1] = 0;
    for (int i = 1; i < n; i++) {
        for (int j = 1; j < 1 << n; j++) {
            int cur = j << i;
            int t = cur % (1 << n) + cur / (1 << n);
            f[t | j] = min(f[t | j], f[j] + w[n - i]);
        }
    }
    for (int j = 0; j < n; j++) {
        for (int i = 0; i < 1 << n; i++) {
            if (!(i >> j & 1)) {
                f[i] = min(f[i], f[i ^ (1 << j)]);
            }
        }
    }
    ll ans = 0;
    for (int i = 1; i < 1 << n; i++) {
        ans = (ans + f[i] * i) % P;
    }
    cout << ans << '\n';
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int T = 1;
    //cin >> T;
    for (int t = 1; t <= T; ++t) {
        Solve(t);
    }
    return 0;
}