#include <bits/stdc++.h>
#include <atcoder/all>
#define rep(i, n) for(long long i = 0; i < n; i++)
#define ALL(v) (v).begin(), (v).end()
#define rALL(v) (v).rbegin(), (v).rend()
using namespace std;

using lint = long long;
using ld = long double;
using mint = atcoder::modint;

int main() {
    mint::set_mod(1000007);
    lint n;
    cin >> n;
    lint h = n / 2LL;
    mint ans = mint(h + 1) * mint(n - h) + h;
    cout << ans.val() << endl;
}