#include <bits/stdc++.h>

#define VARNAME(x) #x
#define show(x) cerr << #x << " = " << x << endl

using namespace std;
using ll = long long;
using ld = long double;
template <typename T>
vector<T> Vec(int n, T v)
{
    return vector<T>(n, v);
}
template <class... Args>
auto Vec(int n, Args... args)
{
    auto val = Vec(args...);
    return vector<decltype(val)>(n, move(val));
}

template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v)
{
    os << "sz:" << v.size() << "\n[";
    for (const auto& p : v) {
        os << p << ",";
    }
    os << "]\n";
    return os;
}

template <typename S, typename T>
ostream& operator<<(ostream& os, const pair<S, T>& p)
{
    os << "(" << p.first << "," << p.second
       << ")";
    return os;
}


constexpr ll MOD = (ll)1e9 + 7LL;
constexpr ld PI = static_cast<ld>(3.1415926535898);

template <typename T>
constexpr T INF = numeric_limits<T>::max() / 10;

bool ispower(const ll n)
{
    return __builtin_popcountll(n) != 1;
}

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll N;
    cin >> N;
    set<ll> A;
    for (ll a = 1; a < N; a *= 2LL) {
        A.insert(a);
        A.insert(N - a);
    }
    for (int a = 1; a < N; a++) {
        if (A.find(a) == A.end()) {
            cout << a << " " << N - a << endl;
            return 0;
        }
    }
    cout << -1 << endl;
    return 0;
}