std::vector<string> coll;
copy(istream_iterator(cin), istream_iterator(), back_inserter(coll));
sort(begin(coll), end(coll));
unique_copy(cbegin(coll), cend(coll), ostread_iterator(cout, "\n"));
std::vector<string> coll;
copy(istream_iterator(cin), istream_iterator(), back_inserter(coll));
sort(begin(coll), end(coll));
unique_copy(cbegin(coll), cend(coll), ostread_iterator(cout, "\n"));