func main()
	const mod: int :: 1000007
	var n: int :: cui@inputInt()
	var a: int :: n / 2
	var b: int :: n - a
	var ans: int :: math@modMul(a + 1, b + 1, mod)
	do ans :: (ans + mod - 1) % mod
	do cui@print("\{ans}\n")
end func