#include #include #include #include #define rep(i, n) for(int i = 0; i < (int)(n); i++) #define repR(i, n) for(int i = (n) - 1; i > -1; i--) #define rep1(i, n) for(int i = 1; i < (int)(n + 1); i++) #define rep1R(i, n) for(int i = (n); i > 0; i--) using namespace std; long long N; long long exp_2[61] = {}; // log2(10 ** 18) + 1 ≒ 61 void init() { long long s = 1; int i = 0; while (s <= N) { exp_2[i] = s; s *= 2; ++i; } } bool is_exp_2(long long n) { if (exp_2[0] == 0) init(); int left = 0, right = log2(N) + 1; while (left < right) { int mid = (left + right) / 2; if (n == exp_2[mid]) return true; else if (n < exp_2[mid]) right = mid; else left = mid + 1; } return false; } int main() { cin >> N; if (N <= 122) { int a, b; rep1(i, N - 1) { a = i; b = N - a; if (!is_exp_2(a) && !is_exp_2(b)) { cout << a << " " << b << endl; return 0; } } cout << -1 << endl; return 0; } long long a, b; rep1(i, 121) { a = i; b = N - a; if (!is_exp_2(a) && !is_exp_2(b)) { cout << a << " " << b << endl; return 0; } } return 0; }