#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000007
#define INF2 1000000000000000000


int main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	ll N; cin >> N;
	//REP(i, 1, N - 1) {
	//	cout << i << " " << N - i << "->" << i * (N - i + 1) + N - i << endl;
	//}
	ll left = N / 2 % mod;
	ll right = (N + 1) / 2 % mod;
	cout << (left * (right + 1) + right) % mod << endl;

    return 0;
}