# include "bits/stdc++.h"
using namespace std;
using LL = long long;
using ULL = unsigned long long;
const double PI = acos(-1);
template<class T>constexpr T INF() { return ::std::numeric_limits<T>::max(); }
template<class T>constexpr T HINF() { return INF<T>() / 2; }
template <typename T_char>T_char TL(T_char cX) { return tolower(cX); };
template <typename T_char>T_char TU(T_char cX) { return toupper(cX); };
const int vy[] = { -1, -1, -1, 0, 1, 1, 1, 0 }, vx[] = { -1, 0, 1, 1, 1, 0, -1, -1 };
const int dx[4] = { -1,0,1,0 }, dy[4] = { 0,-1,0,1 };
const char dir[4] = { 'u','l','d','r' };
int popcnt(unsigned long long n) { int cnt = 0; for (int i = 0; i < 64; i++)if ((n >> i) & 1)cnt++; return cnt; }
int d_sum(LL n) { int ret = 0; while (n > 0) { ret += n % 10; n /= 10; }return ret; }
int d_cnt(LL n) { int ret = 0; while (n > 0) { ret++; n /= 10; }return ret; }
LL gcd(LL a, LL b) { if (b == 0)return a; return gcd(b, a%b); };
LL lcm(LL a, LL b) { LL g = gcd(a, b); return a / g*b; };
# define ALL(qpqpq)           (qpqpq).begin(),(qpqpq).end()
# define UNIQUE(wpwpw)        (wpwpw).erase(unique(ALL((wpwpw))),(wpwpw).end())
# define LOWER(epepe)         transform(ALL((epepe)),(epepe).begin(),TL<char>)
# define UPPER(rprpr)         transform(ALL((rprpr)),(rprpr).begin(),TU<char>)
# define FOR(i,tptpt,ypypy)   for(LL i=(tptpt);i<(ypypy);i++)
# define REP(i,upupu)         FOR(i,0,upupu)
# define INIT                 std::ios::sync_with_stdio(false);std::cin.tie(0)
# pragma warning(disable:4996)

LL n;

const int mod = 1e9 + 7;

struct mint {
	int n;
	mint(int n_ = 0) : n(n_) {}
};

mint operator+(mint a, mint b) { return (a.n += b.n) >= mod ? a.n - mod : a.n; }
mint operator-(mint a, mint b) { return (a.n -= b.n) < 0 ? a.n + mod : a.n; }
mint operator*(mint a, mint b) { return 1LL * a.n * b.n % mod; }
mint &operator+=(mint &a, mint b) { return a = a + b; }
mint &operator-=(mint &a, mint b) { return a = a - b; }
mint &operator*=(mint &a, mint b) { return a = a * b; }
ostream &operator<<(ostream &o, mint a) { return o << a.n; }

const LL MOD = 1000000007;
LL combi(LL N_, LL C_) {
	const int NUM_ = 40000000;
	static LL fact[NUM_ + 1], factr[NUM_ + 1], inv[NUM_ + 1];
	if (fact[0] == 0) {
		inv[1] = fact[0] = factr[0] = 1;
		for (int i = 2; i <= NUM_; ++i) inv[i] = inv[MOD % i] * (MOD - MOD / i) % MOD;
		for (int i = 1; i <= NUM_; ++i) fact[i] = fact[i - 1] * i%MOD, factr[i] = factr[i - 1] * inv[i] % MOD;
	}
	if (C_<0 || C_>N_) return 0;
	return factr[C_] * fact[N_] % MOD*factr[N_ - C_] % MOD;
}

LL hcomb(int P_, int Q_) { return (P_ == 0 && Q_ == 0) ? 1 : combi(P_ + Q_ - 1, Q_); }

LL modpow(LL a, LL n = MOD - 2) {
	LL r = 1;
	while (n) r = r*((n % 2) ? a : 1) % MOD, a = a*a%MOD, n >>= 1;
	return r;
}

int main() {
	cin >> n;
	mint ans = 1;
	for (int i = n; i >= 1; i--) {
		ans *= combi(i * 2, 2);
	}
	cout << ans << endl;
}