#include<cstdio>
#include<iostream>
#include<algorithm>
#include<string>
#include<queue>
#include<vector>
#include<functional>
#include<cmath>
#include<map>
#include<stack>
#include<set>
#include<numeric>
#include<limits>
#include<iterator>

#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()

using namespace std;
typedef long long ll;
typedef pair<int, int> pi;
typedef pair<ll, ll> pl;
typedef pair<ll, char> plc;

ll mod = (ll)(1e9 + 7);

int main()
{
	ll n,ans = 1;
	cin >> n;
	
	if (n == 1) {
		cout << 2 << endl;
		return 0;
	}

	if (n % 2 != 0) {
		for (int i = 1; i <= n / 2 + 1; i++) {
			if (i == 1) ans *= 4;
			else if (i == n / 2+1)ans *= 3;
			else ans *= 5;
				ans %= mod;
		}
	}
	else {
		for (int i = 1; i <= n / 2; i++) {
			if (i == 1)ans *= 4;
			else ans *= 5;
			ans %= mod;
		}
	}
	cout << ans << endl;
	return 0;
}