#include<bits/stdc++.h>
// #include<atcoder/all>

using namespace std;
// using namespace atcoder;
using ll = long long;
using ull = unsigned long long;
using P = pair<int,int>;
#define rep(i,n) for(ll i = 0;i < (ll)n;i++)
#define ALL(x) (x).begin(),(x).end()
#define MOD 1000000007

template<typename T>
class Segtree{
  public:
  using F = function<T(T,T)>;
  int n;
  F f;
  T ti;
  vector<T> dat;
  Segtree(){};
  Segtree(F f,T ti): f(f),ti(ti){}
  void init(int N){
    n = 1;
    while(n < N)n <<= 1;
    dat.assign(n << 1,ti);
  }
  void build(const vector<T> &v){
    int N = v.size();
    init(N);
    rep(i,N)dat[n+i] = v[i];
    for(int i = n-1;i >= 0;i--)dat[i] = f(dat[(i << 1)|0],dat[(i << 1)|1]);
  }
  void set(int k,T x){
    dat[k+=n] = x;
    while(k >>= 1){
      dat[k] = f(dat[(k << 1)|0],dat[(k << 1)|1]);
    }
  }
  T get(int l,int r){
    T vl = ti,vr = ti;
    for(l += n,r += n;l < r;l >>= 1,r >>= 1){
      if(l & 1)vl = f(vl,dat[l++]);
      if(r & 1)vr = f(dat[--r],vr);
    }
    return f(vl,vr);
  }
};
const int mod = 998244353;

int main(){
  
  int n;
  cin >> n;
  vector<int> v(n);
  vector<int> w(n);
  rep(i,n)cin >> v[i],w[i] = v[i];
  sort(ALL(w));
  w.erase(unique(ALL(w)),w.end());
  map<int,int> mp;
  int m = w.size();
  rep(i,m)mp[w[i]] = i;
  auto f = [&](pair<ll,ll> a,pair<ll,ll> b){return pair<ll,ll>{(a.first+b.first)%mod,a.second+b.second};};
  Segtree<pair<ll,ll>> one(f,{0,0}),two(f,{0,0}),three(f,{0,0});
  one.build(vector<pair<ll,ll>>(m,{0,0}));
  two.build(vector<pair<ll,ll>>(m,{0,0}));
  three.build(vector<pair<ll,ll>>(m,{0,0}));
  rep(i,n){
    int k = mp[v[i]];
    {
      pair<ll,ll> x = one.get(k,k+1);
      x.first += v[i];x.second++;
      x.first %= mod;
      one.set(k,x);
    }
    {
      pair<ll,ll> x = two.get(k,k+1);
      pair<ll,ll> y = one.get(k+1,m);
      two.set(k,{(x.first+y.first+y.second*v[i]%mod)%mod,x.second+y.second});
    }
    {
      pair<ll,ll> x = three.get(k,k+1);
      pair<ll,ll> y = two.get(k+1,m);
      three.set(k,{(x.first+y.first+y.second*v[i]%mod)%mod,x.second+y.second});
    }
  }
  cout << three.get(0,m).first << "\n";
  



  return 0;
}