#include <iostream>
#include <algorithm>
#include <cstring>
using namespace std;
typedef long long int ll;
const ll MOD = 1000000007;
ll n,ans=1;
int main() {
	cin >> n;
	for (int i = 2 * n,ct=0; i >= 1; i--) {
		int i2 = i;
		for (; ct < n && ((i2 & 1) == 0); ct++, i2 = (i2 >> 1));
		ans *= i2; ans %= MOD;
	}
	cout << ans << endl;
	return 0;
}