#define  _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream> 
#include <random>
#include<map>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <cassert>
#include<fstream>
#include <unordered_map>  
using namespace std;
#define eps 0.00000001
#define LONG_INF 10000000000000000
#define GOLD 1.61803398874989484820458
#define MAX_MOD 1000000007
#define REP(i,n) for(long long i = 0;i < n;++i)
int main() {
	long long n;
	cin >> n;
	long long hoge = n;
	hoge += 2;
	hoge /= (long long)2;
	hoge %= 1000007;
	long long mew = (long long)(n + (long long)3)/2;
	mew %= 1000007;
	hoge *= mew;
	hoge--;
	hoge += 1000007;
	hoge %= 1000007;
	cout << hoge << endl;
	return 0;
}