#include <bits/stdc++.h>
#define rep(i, a, n) for(int i = a; i < n; i++)
#define REP(i, n) rep(i, 0, n)
#define repb(i, a, b) for(int i = a; i >= b; i--)
#define all(a) a.begin(), a.end()
#define int long long
#define chmax(x, y) x = max(x, y)
#define chmin(x, y) x = min(x, y)
using namespace std;
typedef pair<int, int> P;
const int mod = 1000000007;
const int INF = 1e12;

signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n;
    cin >> n;
    map<int, int> mp;
    rep(i, 0, 64) mp[(1LL << i)] = -1;
    rep(i, 3, n){
        int op = n - i;
        if(mp[i] == -1 || mp[op] == -1) continue;
        cout << i << " " << op << endl;
        return 0;
    }
    cout << -1 << endl;
}