#include <iostream>
#include <cstdio>
#include <vector>
#include <algorithm>
#include <utility>

using namespace std;

const int MOD = 1000007;

int main() {
	long long n, x, ans;
	cin >> n;

	x = n / 2;
	ans = ((1LL + x) % MOD) * ((n - x) % MOD) + x;
	ans %= MOD;
	cout << ans << endl;
	return 0;
}