#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <stack>
#include <queue>
#include <set>
#include <map>
using namespace std;

int main() {
	int n;
	cin >> n;
	int ans = 1;
	const int mod = 1e9 + 7;
	for (int i = 1; i <= n; i++) {
		ans = 1LL * ans * i % mod;
		ans = 1LL * ans * (i * 2 - 1) % mod;
	}
	cout << ans << endl;
}