#include <tuple>
#include <string>
#include <iostream>
int main()
{
{
std::tuple<const std::string> t(std::string("hello"));
std::cout << '"' <<std::get<0>(t) << "\"\n";
}
{
std::tuple<const std::string&> t(std::string("world"));
std::cout << '"' <<std::get<0>(t) << "\"\n";
}
}
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