import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		long N = scan.nextLong();
		scan.close();
		if(N == 1 || N == 2 || N == 4 || N == 5 || N == 7) {
			System.out.println(-1);
			System.exit(0);
		}
		if(Long.bitCount(N - 3) != 1) {
			long b = N - 3;
			System.out.println(3 + " " + b);
		}else if(Long.bitCount(N - 5) != 1) {
			long b = N - 5;
			System.out.println(5 + " " + b);
		}else {
			System.out.println(-1);
		}
	}
}