#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll=int;
using ld=long double;
ld pie=3.14159265359;
ll inf=80010010;
ll mod=1000000007;
int main(){
    ll n;
    cin >> n;
    if (n%2)
    {
        cout << 1 << endl;
    }else if ((n/2)%2||n==4)
    {
        cout << -1 << endl;
    }else{
        cout << 1 << endl;
    }
    
    
}