#include <iostream>
#include <iomanip>
#include <vector>
#include <algorithm>
#include <string>
#include <map>
#include <stdio.h>
#include <stdlib.h>
using namespace std;

static const double pi = 3.14159265358979323846;

long long mod = 1000000007;


int main(){
  int N;
  cin >> N;

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

  bool even = N%2 == 0;

  long long ret = 1;
  for(int i=0; i<(N+1)/2; i++){
    if(i==0) {ret *= 4; ret %= mod;}
    else if (i==((N+1)/2-1)){
      if(even) {ret *= 5; ret %= mod;}
      else {ret *= 3; ret %= mod;}
    }
    else{
      ret *= 5; ret %= mod;
    }
  }

  cout << ret << endl;

  return 0;
}