import sys
def input(): return sys.stdin.readline().strip()
def mapint(): return list(map(int, input().split()))
sys.setrecursionlimit(10**9)

N = int(input())
mod = 998244353

def prime_factorize(n):
    a = []
    while n % 2 == 0:
        a.append(2)
        n //= 2
    f = 3
    while f * f <= n:
        if n % f == 0:
            a.append(f)
            n //= f
        else:
            f += 2
    if n != 1:
        a.append(n)
    return a

from collections import Counter, defaultdict
count = []
# for i in range(1, N):
#     count.append(Counter(prime_factorize(i)))
primes = defaultdict(int)
for i in range(1, N):
    count = Counter(prime_factorize(i*(N-i)))
    for key in count.keys():
        primes[key] = max(count[key], primes[key])

ans = 1
for key in primes.keys():
    ans *= pow(key, primes[key], mod)
    ans %= mod
print(ans)