#include <bits/stdc++.h>

#pragma GCC optimize("O3")
//#define int long long

using namespace std;

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;

const ll mod = 1e9 + 7;
ll modpow(ll b, ll e) {
	ll ans = 1;
	for (; e; b = b * b % mod, e /= 2)
		if (e&1) ans = ans * b % mod;
	return ans;
}

signed main(){
	cin.tie(0);
	ios::sync_with_stdio(0);
	ll n; cin >> n;
	cout << n * modpow(2, n - 2) % mod * modpow(2, mod - 2) % mod << '\n';
}