#include <iostream>
#include <set>
#include <cstring>
using namespace std;
int main() {
// your code goes here
std::set<int> x={10,11,13,14};
x.insert(12);
for (const int& i : x) // access by const reference
std::cout << i << ' ';
std::cout << '\n';
return 0;
}
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