#include <bits/stdc++.h>
//#include <math.h>
using namespace std;

#define INF 1.1e9
#define LINF 1.1e18
#define FOR(i,a,b) for (int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define ALL(v) (v).begin(),(v).end()
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define BIT(x,n) bitset<n>(x)
#define PI 3.14159265358979323846

typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> PP;

//-----------------------------------------------------------------------------

ll n;

int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);

	cin>>n;
	ll i=3;
	while(i<=n/2) {
		ll m=n-i;
		while(m%2==0) m/=2;
		//cout<<m<<endl;
		if(m==1) {
			i++;
			continue;
		}
		else {
			m=i;
			while(m%2==0) m/=2;
			if(m==1) {
				i++;
				continue;
			}
			else {
				cout<<i<<' '<<n-i<<endl;
				return 0;
			}
		}
	}
	cout<<-1<<endl;


	return 0;
}