class BIT:
    def __init__(self,n):
        self.n = n; self.k = [0]*(n+1)
    def a(self,i,x):
        while i<=self.n: self.k[i] += x; i += i&-i
    def s(self,i):
        t = 0
        while i>0: t += self.k[i]; i -= i&-i
        return t
n = int(input()); mod = 998244353; fa = [1]*(n+1); fi = [1]*(n+1)
for i in range(1,n): fa[i+1] = fa[i]*(i+1)%mod
fi[n] = pow(fa[n],mod-2,mod)
for i in range(n,0,-1): fi[i-1] = fi[i]*i%mod
def cmb(n,r): return fa[n]*fi[n-r]%mod*fi[r]%mod if 0<=r<=n else 0
bit = BIT(n); x = 0; ans = 0
for i,v in enumerate(map(int,input().split())):
    ls = bit.s(v); ll = i-ls; rs = v-1-ls; rl = n-v-ll; bit.a(v,1)
    ans += cmb(ls+rl,ls)*cmb(ll+rs,ll)
print(ans%mod)