import java.io.*;
import java.util.*;
import java.util.function.*;
import java.util.stream.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        long n = sc.nextLong();
        Set<Long> prohibited = IntStream.range(0, 60).mapToLong(i -> (1L << i)).boxed()
            .collect(Collectors.toCollection(HashSet<Long>::new));
        long ans = LongStream.rangeClosed(1, n / 2)
            .filter(i -> !prohibited.contains(i) && !prohibited.contains(n - i)).findFirst().orElse(-1);
        System.out.println(ans == -1 ? "-1" : ans + " " + (n - ans));
    }
}
class Scanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() {
        try {
            br = new BufferedReader(new InputStreamReader(System.in));
        } catch (Exception e) {
            
        }
    }
    
    public int nextInt() {
        return Integer.parseInt(next());
    }
    
    public long nextLong() {
        return Long.parseLong(next());
    }
    
    public double nextDouble() {
        return Double.parseDouble(next());
    }
    
    public String next() {
        try {
            while (!st.hasMoreTokens()) {
                st = new StringTokenizer(br.readLine());
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            return st.nextToken();
        }
    }
    
}