import sys
from collections import deque, Counter
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 63 - 1
mod = 998244353
class fenwick_tree():
    n=1
    data=[0 for i in range(n)]
    def __init__(self,N):
        self.n=N
        self.data=[0 for i in range(N)]

    def add(self,p,x):
        assert 0<=p<self.n,"0<=p<n,p={0},n={1}".format(p,self.n)

        p+=1
        while(p<=self.n):
            self.data[p-1]+=x
            p += p&(-p)
    def sum(self,l,r):
        assert (0<=l and l<=r and r<=self.n),"0<=l<=r<=n,l={0},r={1},n={2}".format(l,r,self.n)
        return self.sum0(r)-self.sum0(l)
    def sum0(self,r):
        s=0
        while(r>0):
            s+=self.data[r-1]
            r-=r&-r
        return s

    def __getitem__(self, p):
        if isinstance(p, int):
            return self.sum(p, p + 1)
        else:
            return self.sum(p.start, p.stop)

    def __setitem__(self, p, x):
        return self.add(p, x - self[p])


n = ii()

a = li()
sa = list(set(a))
A = [(sa[i], i) for i in range(len(sa))]

A.sort()
d = {}

sn = len(A)
for i in range(sn):
    d[A[i][0]] = i

    
f1 = fenwick_tree(sn)
c1 = fenwick_tree(sn)
f2 = fenwick_tree(sn)
c2 = fenwick_tree(sn)
ans = 0
for i in range(n):
    f2[d[a[i]]] += a[i]
    c2[d[a[i]]] += 1
for i in range(n):
    f2[d[a[i]]] -= a[i]
    c2[d[a[i]]] -= 1

    ans += f1[d[a[i]] + 1: sn] * c2[0:d[a[i]]] + f2[0:d[a[i]]] * c1[d[a[i]] + 1: sn] + c1[d[a[i]] + 1: sn] * c2[0:d[a[i]]] * a[i]
    ans %= mod

    f1[d[a[i]]] += a[i]
    c1[d[a[i]]] += 1

print(ans)