def main():
    from collections import Counter
    import math

    def prime_numbers(n):
        is_prime = [True] * (n + 1)
        is_prime[0] = False
        is_prime[1] = False
        for i in range(2, n + 1):
            for j in range(i * 2, n + 1, i):
                is_prime[j] = False
        return [i for i in range(n + 1) if is_prime[i]]
    primes = prime_numbers(10 ** 6 + 1)
    def soinnsuu(x):
        s = []
        for i in primes:
            if i > int(math.sqrt(x)):
                break
            elif x % i == 0:
                while x % i == 0:
                    x //= i
                    s.append(i)
        if not x == 1:
            s.append(x)
        return s
    n = int(input())
    Cs = [soinnsuu(i) for i in range(1, n)]
    d = dict()
    for i in range(1, (n + 1) // 2 + 1):
        p1, p2 = Counter(Cs[i - 1]), Counter(Cs[-i])
        for j in p1.keys() | p2.keys():
            if not j in d: d[j] = p1[j] + p2[j]
            else: d[j] = max(d[j], p1[j] + p2[j])
    ans = 1
    mod = 998244353
    for k, v in d.items():
        ans *= pow(k, v, mod)
        ans %= mod
    print(ans)
if __name__ == '__main__':
    main()