N = int(input())
A = list(map(int,input().split()))
mod = 998244353

class Bit1:
    def __init__(self, n):
        self.size = n
        self.tree = [0] * (n + 1)

    def sum(self, i):
        s = 0
        while i > 0:
            s += self.tree[i]
            s %= mod
            i -= i & -i
        return s

    def add(self, i, x):
        while i <= self.size:
            self.tree[i] += x
            self.tree[i] %= mod
            i += i & -i

class Bit2:
    def __init__(self, n):
        self.size = n
        self.tree = [0] * (n + 1)

    def sum(self, i):
        s = 0
        while i > 0:
            s += self.tree[i]
            i -= i & -i
        return s

    def add(self, i, x):
        while i <= self.size:
            self.tree[i] += x
            i += i & -i

B = list(set(A))
B.sort()
M = len(B)
D = dict(zip(B,range(M)))

bit11 = Bit1(M)
bit21 = Bit1(M)
bit12 = Bit2(M)
bit22 = Bit2(M)
ans = 0
for i in range(N):
    tmp = bit21.sum(M) - bit21.sum(D[A[i]]+1)
    cnt = bit22.sum(M) - bit22.sum(D[A[i]]+1)
    if cnt > 0:
        ans = (ans + A[i] * cnt + tmp) % mod
    tmp = bit11.sum(M) - bit11.sum(D[A[i]]+1)
    cnt = bit12.sum(M) - bit12.sum(D[A[i]]+1)
    if cnt > 0:
        bit21.add(D[A[i]]+1,tmp + A[i] * cnt)
        bit22.add(D[A[i]]+1,cnt)
    bit11.add(D[A[i]]+1,A[i])
    bit12.add(D[A[i]]+1,1)

print(ans)