#include <iostream>
#include <math.h>
#include <string>
#include <algorithm>
using namespace std;

int main(){
	long long n;
	long long a,b;
	long long ans;
	cin >> n;
	a = n / 2+1;
	a = a % 1000007;
	b = (n - a + 2) % 1000007;
	ans = (a*b)%1000007-1;
	if (ans == -1){
		ans = 1000006;
	}
	cout << ans << endl;
	return 0;
}