#include
#include
#include
#include
#include
using namespace std;
int main()
{
list listObject;
ostream_iterator out_it(cout);
listObject.push_back("Stream ");
listObject.push_back("iterators ");
listObject.push_back("are ");
listObject.push_back("useful.");
copy(listObject.begin(), listObject.end(), out_it);
return 0;
}