#include <bits/stdc++.h>

int main() {

  long N;
  long a, b;
  long ans;

  std::cin >> N;

  a = N / 2;
  b = N - a;

  a += 1;
  b += 1;

  a %= 1000007;
  b %= 1000007;

  ans = a * b + 1000007 - 1;
  ans %= 1000007;


  std::cout << ans << std::endl;
  
  
  
  return 0;
}