#include <iostream>
#include <vector>
#include <algorithm>
#include <map>
#include <string>
using namespace std;



int main() {
	long long a;
	cin >> a;
	cout << ((a - a / 2 + 1) % 1000007 )*((a / 2 + 1) % 1000007 - 1)% 1000007 << endl;
}