//https://www.nowcoder.com/practice/c4f11ea2c886429faf91decfaf6a310b?tpId=37&rp=1&ru=%2Fexam%2Foj%2Fta&qru=%2Fexam%2Foj%2Fta&sourceUrl=%2Fexam%2Foj%2Fta%3FtpId%3D37&difficulty=&judgeStatus=&tags=&title=80&gioEnter=menu #include <iostream> #include <vector> #include <set> using namespace std; int main() { int n = 0; while (cin >> n) { int m = 0; int tem = 0; set<int> ans; for(int i = 0;i<n;i++){ cin >> tem; ans.insert(tem); } cin >> m; for(int i = 0;i<m;i++){ cin >> tem; ans.insert(tem); } for(auto c:ans) cout << c; cout << endl; } }