/* -*- coding: utf-8 -*-
 *
 * 72.cc: No.72 そろばん Med - yukicoder
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>
 
using namespace std;

/* constant */

typedef long long ll;
const ll MOD = 1000007;

/* typedef */

/* global variables */

/* subroutines */

/* main */

int main() {
  ll n;
  cin >> n;

  ll i = n / 2, j = n - i;
  ll sum = (((i + 1) % MOD) * (j % MOD) + i % MOD) % MOD;
  
  printf("%lld\n", sum);
  return 0;
}