n = int(input())
MOD = 10 ** 9 + 7
dp = [[0, 0] for _ in range(n)]

if n == 1:
    print(1)
    exit()

dp[0] = [1, 1]
dp[1] = [2, 2]
for i in range(2, n):
    dp[i][0] = (i + 1) * dp[i - 1][1]
    dp[i][1] = dp[i][0] + dp[i - 2][1]
    dp[i][0] %= MOD
    dp[i][1] %= MOD
print(dp[-1][0])