import java.util.*;

public class Main {

	static Scanner sc;
	static long numerator;
	static long denominator;

	public static void main(String[] args) {

		sc = new Scanner(System.in);
		numerator = 1;
		denominator = 1;

		inputNume(sc.nextInt());
		inputDeno(sc.nextInt());

		calculateGcf(numerator, denominator);

		if( (numerator >= 0 && denominator < 0)||(numerator < 0 && denominator < 0) ) {
			numerator *= -1;
			denominator *= -1;
		}

		System.out.println(numerator+" "+denominator);
	}

	static void inputNume(int l) {
		numerator *= sc.nextLong();
		for(int i=1;i<l;i++) {
			denominator *= sc.nextLong();
			calculateGcf(numerator, denominator);
		}
	}

	static void inputDeno(int l) {
		for(int i=0;i<l;i++) {
			if(i % 2 != 0) {
				numerator *= sc.nextLong();
			} else {
				denominator *= sc.nextLong();
			}
			calculateGcf(numerator, denominator);
		}
	}

	static void calculateGcf(long m, long n) {
		if(m == 0 || n == 0) {
			n = 1;
		} else {
		long s = 0;
		while(m % n != 0) {
			s = m;
			m = n;
			n = s % n;
		}
	}
		numerator /= n;
		denominator /= n;
	}
}