#include<bits/stdc++.h>

using namespace std;
using ll = long long;

ostream &operator<<(ostream &dest, __int128_t value) {
  ostream::sentry s(dest);
  if (s) {
	__uint128_t tmp = value < 0 ? -value : value;
	char buffer[128];
	char *d = std::end(buffer);
	do {
	  --d;
	  *d = "0123456789"[tmp % 10];
	  tmp /= 10;
	} while (tmp != 0);
	if (value < 0) {
	  --d;
	  *d = '-';
	}
	int len = std::end(buffer) - d;
	if (dest.rdbuf()->sputn(d, len) != len) {
	  dest.setstate(ios_base::badbit);
	}
  }
  return dest;
}

__int128 parse(string &s) {
  __int128 ret = 0;
  for (int i = 0; i < (int)s.length(); i++)
	if ('0' <= s[i] && s[i] <= '9')
	  ret = 10 * ret + s[i] - '0';
  return ret;
}

istream &operator>>(istream &is, __int128_t &a){
	string s;
	is>>s;
	a = parse(s);
	return (is);
}
using Int = __int128_t;


int main()
{
	Int n; cin >> n;
	if((n % 2 == 1 || n % 4 == 0) && n != 1 && n != 4) {
		cout << 1 << endl;
	} else {
		cout << -1 << endl;
	}
}