#include <iostream>
#include <vector>
#include <set>
using namespace std;
int main() {
int n = 5;
vector<int> a;
set<int> b;
for (int i = 1; i <= n; ++i) {
a.push_back(i);
b.insert(i);
}
for (int i = 1; i <= n; ++i) {
a.push_back(i);
b.insert(i);
}
cout << a.size() << b.size() << endl;
return 0;
} 程序的输出为（）
