#include <iostream>
#include <vector>

// Using a USet, implement a Bag. A Bag is like a USet — it supports the add(x),
// remove(x), and find (x) methods — but it allows duplicate elements to be
// stored.  The find(x) operation in a Bag returns some element (if any) that is
// equal to x. In addition, a Bag supports the findAll(x) operation that returns
// a list of all elements in the Bag that are equal to x.

// template<typename T>
// class Bag {
// public:
//
// private:
//  	vector<T>	v;
// };

int
main(void)
{
	return 0;
}