#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
const int INF = 1e9;
const ll LINF = 1e18;
inline ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
inline ll lcm(ll a, ll b) { return a / gcd(a, b)*b; }
template<class S,class T> ostream& operator << (ostream& out,const pair<S,T>& o){ out << "(" << o.first << "," << o.second << ")"; return out; }
template<class T> ostream& operator << (ostream& out,const vector<T> V){ for(int i = 0; i < V.size(); i++){ out << V[i]; if(i!=V.size()-1) out << " ";} return out; }
template<class T> ostream& operator << (ostream& out,const vector<vector<T> > Mat){ for(int i = 0; i < Mat.size(); i++) { if(i != 0) out << endl; out << Mat[i];} return out; }
template<class S,class T> ostream& operator << (ostream& out,const map<S,T> mp){ out << "{ "; for(auto it = mp.begin(); it != mp.end(); it++){ out << it->first << ":" << it->second; if(mp.size()-1 != distance(mp.begin(),it)) out << ", "; } out << " }"; return out; }

/*
 <url:https://yukicoder.me/problems/no/336>
 問題文============================================================
 =================================================================
 解説=============================================================
 https://oeis.org/A001250
 ================================================================
 */


bool kadomatsu(int a,int b,int c){ return (b<a && b<c)||(b>a && b>c);}
void test(){
    for(int i = 1; i < 10;i++){
        int cnt = 0;
        vector<int> v(i); iota(v.begin(),v.end(),1);
        do{
            
            bool ok = true;
            for(int j = 0; j < i-2; j++){
                if(kadomatsu(v[j], v[j+1], v[j+2])) continue;
                ok = false;
                break;
            }
            cnt+=ok;
        }while(next_permutation(v.begin(),v.end()));
        cout << i << " : " << cnt << endl;
    }
}
const ll MOD = 1e9+7;
vector<ll> calc(ll n){
    vector<ll> R{1};
    map<ll,ll> A; A[-1] = 0; A[0] = 2;
    ll k = 0,e = 1;
    for(int i = 0; i <= n;i++){
        ll Am = 0;
        A[k+e] = 0;
        e = -e;
        for(int j = 0; j <= i; j++){
            (Am += A[k])%=MOD;
            A[k] = Am;
            k += e;
        }
        if(i > 1){
            if(i%2==0){
                R.push_back(A[-i/2]);
            }else{
                R.push_back(A[i/2]);
            }
        }
    }
    return R;
}
ll solve(){
    ll res = 0;
    ll N; cin >> N;
    if(N <= 2) return 0;
    res = calc(N).back();
    return res;
}
int main(void) {
    cin.tie(0); ios_base::sync_with_stdio(false);
    //test();
    cout << solve() << endl;
    return 0;
}