#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
const int mod = 1e9 + 7;
int n;
inline int ksm(int a, int b, int mod)
{
    b = b % (mod - 1);
    int res = 1;
    while (b)
    {
        if (b & 1ll)
            res = res * a % mod;
        a = a * a % mod;
        b >>= 1ll;
    }
    return res;
}
signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    // freopen("crotate.in", "r", stdin);
    // freopen("crotate.out", "w", stdout);
    cin >> n;
    if (n == 1)
    {
        cout << 2 << "\n";
        return 0;
    }
    if (n % 2 == 1)
    {
        n /= 2;
        cout << 12 * ksm(5, n - 1, mod) % mod << "\n";
    }
    else
    {
        n /= 2;
        cout << 4 * ksm(5, n - 1, mod) % mod << "\n";
    }
}