MOD = 10**9 + 7
n = int(input())

if n >= MOD:
    print(0)
else:
    if MOD - n <= 10**6:
        product = 1
        for k in range(n + 1, MOD):
            product = product * pow(k, MOD - 2, MOD) % MOD
        ans = (-product) % MOD
    else:
        ans = 1
        for i in range(1, n + 1):
            ans = ans * i % MOD
    print(ans)