import java.io.*; import java.util.*; public class Main { static final int MOD = 998244353; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int[] values = new int[n]; TreeMap<Integer, Integer> compress = new TreeMap<>(); for (int i = 0; i < n; i++) { values[i] = sc.nextInt(); compress.put(values[i], null); } int idx = 1; for (int x : compress.keySet()) { compress.put(x, idx++); } BinaryIndexedTree firstValue = new BinaryIndexedTree(idx); BinaryIndexedTree firstCount = new BinaryIndexedTree(idx); BinaryIndexedTree secondValue = new BinaryIndexedTree(idx); BinaryIndexedTree secondCount = new BinaryIndexedTree(idx); long ans = 0; for (int i = n - 1; i >= 0; i--) { int v = compress.get(values[i]); ans += secondValue.getSum(v - 1) + secondCount.getSum(v - 1) * (long)values[i]; ans %= MOD; long add = firstValue.getSum(v - 1) + firstCount.getSum(v - 1) * (long)values[i]; secondValue.add(v, (int)(add % MOD)); secondCount.add(v, firstCount.getSum(v - 1)); firstValue.add(v, values[i]); firstCount.add(v, 1); } System.out.println(ans); } } class BinaryIndexedTree { int size; int[] tree; static final int MOD = 998244353; public BinaryIndexedTree(int size) { this.size = size; tree = new int[size]; } public void add(int idx, int value) { int mask = 1; while (idx < size) { if ((idx & mask) != 0) { tree[idx] += value; tree[idx] %= MOD; idx += mask; } mask <<= 1; } } public int getSum(int x) { int mask = 1; int ans = 0; while (x > 0) { if ((x & mask) != 0) { ans += tree[x]; ans %= MOD; x -= mask; } mask <<= 1; } return ans; } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); StringBuilder sb = new StringBuilder(); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }