#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#include <utility>
#include <functional>
#include <time.h>
#define popcount __builtin_popcount
using namespace std;
typedef long long int ll;
typedef pair<int, int> P;
const ll MOD=1e9+7;

int main()
{
	ll n;
	cin>>n;
	ll c1, c2, c3;
	if(n%3==1) c1=1;
	else c1=0;
	if(n%2==0) c2=(n-4)/2+1;
	else c2=(n-5)/2+1;
	c2-=c1;
	c2%=MOD;
	c3=(n-2)%MOD*((n-3)%MOD)%MOD*((MOD+1)/2)%MOD;
	c3-=c1;
	c3-=3*c2%MOD;
	c3=(c3+MOD)%MOD;
	c3*=((MOD+1)/6);
	c3%=MOD;
	ll ans=(c1+c2+c3)%MOD;
	cout<<ans<<endl;
	return 0;
}