#include <stdio.h>
#include <algorithm>
#include <iostream>
#include <string>
#include <vector>
#include <functional>
#include <map>
#include <iomanip>
#include <math.h> 
#include <stack>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <tuple>
#include <cctype>
#include <ctype.h>
#include <set>
#include <sstream>

using namespace std;


int main() {
	int i, j;
	int n1, n2;
	vector<double>a, b;


	cin >> n1;

	for (i = 0; i < n1; i++) {
		double num;
		cin >> num;
		a.push_back(num);
	}

	cin >> n2;

	for (i = 0; i < n2; i++) {
		double num;
		cin >> num;
		b.push_back(num);
	}

	double ans1 = 0, ans2 = 0;

	if (n1 == 1) {
		ans1 = a[0];
	}
	else {
		ans1 = a[0];
		for (i = 1; i < n1; i++) {
			//ans1 = a[i] / a[i + 1];
			ans1 = ans1  / a[i];
		}

	}


	if (n2 == 1) {
		ans2 = b[0];
	}
	else {
		ans2 = b[0];
		for (i = 1; i < n2; i++) {
			//ans2 = b[i] / b[i + 1];
			ans2 = ans2 / b[i];
		}

	}

	double ans3 = (ans1 / ans2);

	cout << ans3 << " "  << 1 << endl;









	getchar();
	getchar();
	return 0;
}