MOD = 998244353

inv_2 = pow(2, -1, MOD)
inv_24 = pow(24, -1, MOD)
p = 25 * pow(36, -1, MOD)

N = int(input())

if N <= 2:
    print(1)
    exit()

nc2 = N * (N - 1) % MOD * inv_2 % MOD
nc4 = N * (N - 1) % MOD * (N - 2) % MOD * (N - 3) % MOD * inv_24 % MOD

print((nc2 - N + 2 + nc4 * p) % MOD)