#include <iostream>
#include <set>
using namespace std;
int main()
{
int u[15], v[15], n, m;
cout << "n = "; cin >> n;
for(int i = 1; i <= n; i++) cin >> v[i];
cout << "m = "; cin >> m;
for(int i = 1; i <= m; i++) cin >> u[i];
set<int> S;
S.insert(v + 1, v + n + 1);
S.insert(u + 1, u + m + 1);
for(set<int>::iterator it = S.begin(); it != S.end(); ++it)
cout << *it << ' ';
return 0;
}