import sys # sys.setrecursionlimit(1000005) # sys.set_int_max_str_digits(200005) int1 = lambda x: int(x)-1 pDB = lambda *x: print(*x, end="\n", file=sys.stderr) p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr) def II(): return int(sys.stdin.readline()) def LI(): return list(map(int, sys.stdin.readline().split())) def LLI(rows_number): return [LI() for _ in range(rows_number)] def LI1(): return list(map(int1, sys.stdin.readline().split())) def LLI1(rows_number): return [LI1() for _ in range(rows_number)] def SI(): return sys.stdin.readline().rstrip() dij = [(0, 1), (-1, 0), (0, -1), (1, 0)] # dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)] # inf = -1-(-1 << 31) inf = -1-(-1 << 62) # md = 10**9+7 md = 998244353 class BitSum: def __init__(self, n): self._n = n+1 self._table = [0]*self._n self._origin = [0]*n def __getitem__(self, item): return self._origin[item] def __setitem__(self, index, value): self.add(index, value-self._origin[index]) self._origin[index] = value def add(self, i, x): if x == 0: return self._origin[i] += x i += 1 while i < self._n: self._table[i] += x i += i & -i def sum(self, r): res = 0 while r > 0: res += self._table[r] r -= r & -r return res def sumlr(self, l, r): if l >= r: return 0 if l == 0: return self.sum(r) return self.sum(r)-self.sum(l) # return "min(i) of sum(a[0]..a[i])>=x" or "N" def bisect(self, x): idx = 0 d = 1 << (self._n-1).bit_length()-1 while d: if idx|d < self._n and self._table[idx|d] < x: idx |= d x -= self._table[idx] d >>= 1 return idx def f(pp): bit=BitSum(n+1) ss=[0]*n for i,p in enumerate(pp): ss[i]=bit.sum(p) bit.add(p,1) return ss def nCr(com_n, com_r): if com_r < 0: return 0 if com_n < com_r: return 0 return fac[com_n]*ifac[com_r]%md*ifac[com_n-com_r]%md n_max = 300005 fac = [1] for i in range(1, n_max+1): fac.append(fac[-1]*i%md) ifac = [1]*(n_max+1) ifac[n_max] = pow(fac[n_max], md-2, md) for i in range(n_max-1, 1, -1): ifac[i] = ifac[i+1]*(i+1)%md n=II() pp=LI1() ll=f(pp) rr=f(pp[::-1])[::-1] ans=0 for i,(l,r) in enumerate(zip(ll,rr)): a,b=l,n-1-i-r cur=fac[a+b]*ifac[a]%md*ifac[b]%md a,b=i-l,r cur*=fac[a+b]*ifac[a]%md*ifac[b]%md ans+=cur ans%=md print(ans)