#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<complex>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<utility>
using namespace std;
typedef unsigned long long ll;
typedef unsigned int ui;
const ll mod = 1000000007;
typedef long double ld;
const ll INF = 1e+14;
typedef pair<int, int> P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
typedef complex<ld> Point;
const ld eps = 1e-8;
const ld pi = acos(-1.0);
typedef pair<ld, ld> LDP;
typedef pair<ll, ll> LP;
#define fr first
#define sc second

ll mod_inverse(ll x) {
	ll n = mod - 2; ll ret = 1;
	while (n) {
		if (n & 1)ret = ret * x%mod;
		x = x * x%mod; n >>= 1;
	}
	return ret;
}
void solve() {
	ll ans = 1;
	ll k; cin >> k;
	if (k % 2) {
		cout << 0 << endl; return;
	}
	else {
		k /= 2;
		ll s = 1;
		rep1(i, k) {
			s *= i; if (s > mod)s %= mod;
		}
		ll memo = s;
		Rep1(i, k+1,2*k) {
			s *= i; if (s > mod)s %= mod;
		}
		memo = mod_inverse(memo);
		s = s * memo%mod*memo%mod;
		cout << s << endl;
	}
}
int main() {
	solve();
	//stop
	return 0;
}