#include <iostream>
#include <set>
#pragma warning (disable:4786)

using namespace std;

int main()
{
	set<int> intset;
	set<int>::iterator itr;

	intset.insert(36);
	intset.insert(22);
	intset.insert(18);
	intset.insert(3);

	//intset.clear();

	for(itr = intset.begin(); itr != intset.end(); itr++)
		cout << *itr << endl;

	itr = intset.find(22);
	if (itr != intset.end())
		cout << "Item found: " << *itr << endl;
	else
		cout << "Item not found." << endl;

	itr = intset.find(47);
	if (itr != intset.end())
		cout << "Item found: " << *itr << endl;
	else
		cout << "Item not found." << endl;

	return 0;
}