#include <bits/stdc++.h>
#define rep(i,n)for(int i=0;i<(n);i++)
using namespace std;
typedef pair<int,int>P;
typedef long long ll;

int main(){
	int n;cin>>n;
	ll A;cin>>A;
	ll B=1;
	rep(i,n-1){
		int a;cin>>a;
		B*=a;
	}
	int m;cin>>m;
	ll C;cin>>C;
	ll D=1;
	rep(i,m-1){
		int a;cin>>a;
		D*=a;
	}
	ll aa=A*D,bb=B*C;
	ll g=__gcd(aa,bb);
	cout<<aa/g<<' '<<bb/g<<endl;
}