use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: u64 = itr.next().unwrap().parse().unwrap();

    for i in 1..n / 2 + 1 {
        if i.count_ones() == 1 || (n - i).count_ones() == 1 {
            continue;
        } else {
            println!("{} {}", i, n - i);
            return;
        }
    }
    println!("-1");
}