#include<iostream>
#include<set>

int main(){
    std::set<std::string> myset;
	auto it = myset.begin();
	it = myset.emplace_hint (it,"red");
	it = myset.emplace_hint (it,"orange");
	it = myset.emplace_hint (it,"yellow");
	  
	std::cout << "myset contains:";
    for (const std::string& mystring: myset)
	  std::cout << ' ' << mystring;
	std::cout << '\n';

    return 0;
}