#include <iostream>
using namespace std;
int main()
{
	int n, c, br = 0;
	int a[20], b[20];
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> a[i];	
	}
	cin >> c;
	for (int i = 0; i < c; i++)
	{
		cin >> b[i];
	}
	cout << br;
}