#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);

ll power(ll x, ll n) {
	ll tmp = 1;
	if (n > 0) {
		tmp = power(x, n / 2);
		if (n % 2 == 0)tmp = (tmp*tmp) % mod;
		else tmp = (((tmp*tmp) % mod)*x) % mod;
	}
	return tmp;
}

int main()
{
	ll ans = 1;
	ll n;
	cin >> n;

	if (n == 1) {
		cout << 2 << endl;
		return 0;
	}

	if (n % 2 != 0)ans = 12 * power(5, n/2-1);
	else ans = 4 * power(5, n/2-1);
	
	cout << ans%mod << endl;
	return 0;
}