#include #include using mint = atcoder::modint998244353; using ll = long long; using namespace std; template struct BIT { BIT(int n) : b(n + 1), n(n) {} void add(int i, T v) { for (int k = i + 1; k <= n; k += k & -k) b[k] += v; } T sum(int k) { T s = 0; for (; k > 0; k -= k & -k) s += b[k]; return s; } vector b; int n; }; int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector p(n); for (int i = 0; i < n; i++) { cin >> p[i]; p[i]--; } mint x = 0, t = 1, s = 1, h = mint(2).inv(), u = 0; BIT b0(n), b1(n); for (int i = 0; i < n; i++) { if (i > 0) x += i - b0.sum(p[i]) - (u - b1.sum(p[i])) * s; b0.add(p[i], 1); b1.add(p[i], t); u += t; t *= 2; s *= h; } x *= mint(2).pow(n - 1); cout << x.val() << endl; return 0; }