#include<iostream>
#include<algorithm>
#include<string>
#include<vector>
#include<iomanip>
#define RREP(i,s,e) for (i = s; i >= e; i--)
#define rrep(i,n) RREP(i,n,0)
#define REP(i,s,e) for (i = s; i < e; i++)
#define rep(i,n) REP(i,0,n)
#define INF 100000000
#define Mod 1000000007
using namespace std;


int main(){
	int n;
	cin >> n;
	int i;
	long temp;
	long long ans = 1;
	for(i = 1; i <= n; i++){
		temp = 2 * i - 1;
		ans = ((ans%Mod) * (i%Mod))%Mod;
		ans = ((ans%Mod) * (temp%Mod))%Mod;
	}

	cout << ans <<endl;

	return 0;
}