def calc(n, mod):
	res = 1
	for i in range(1, n + 1): res = res * i % mod
	res = res ** 2 % mod
	for i in range(1, 2 * n, 2): res = res * i % mod
	return res

def solve():
	n = int(input())
	mod = 1000000007
	ans = calc(n, mod)
	print(ans)

if __name__ == "__main__":
	solve()