import sys; input = sys.stdin.buffer.readline
sys.setrecursionlimit(10**7)
from collections import defaultdict
con = 10 ** 9 + 7; INF = float("inf")

def getlist():
	return list(map(int, input().split()))

#処理内容
def main():
	N = int(input())
	DP = [0] * (N + 1)
	DP[1] = 1
	for i in range(2, N + 1):
		DP[i] = (DP[i - 1] * i) % con
		if i != N:
			DP[i] += DP[i - 2]

	ans = DP[-1]
	# print(DP)
	print(ans % con)

if __name__ == '__main__':
	main()