In this question, you will be working with a somewhat artificial variation of the <code>Pair</code> class. The main modification
is that the <code>first</code> and <code>second</code >data members are not the actual values, but pointers to the values. Thus -- at constructor time --
the arguments (integers) sent to the constructor are not placed into the data members; rather two integers are dynamically allocated
and their pointer assigned to the <code>first</code> and <code>second</code> data members. Since we have data members that are pointers,
and we are allocating dynamic memory, the canonical form ('rule of three') must be used.

The name of the class is <code>Pair</code>. Since this requires the canonical form, the usual functions become:

<ul>
	<li>A constructor that accepts a pair of integers and uses it to initialize the object
	<li>A copy constructor that preserves equivalence (i.e. equality) and ensure independence
	<li>An assignment operator that does the same
	<li>A destructor
	<li>A &lt;&lt; operator that prints out the pair as <code>(<em>first</em>,<em>second</em>)</code>
	<li>An <code>==</code> operator (non-member friend) &mdash; two pair are equal if their first and second components are equal
	<li>A <code>swap</code> members function that swaps the first and second components of the pair (in place, i.e, no new Pair is created).
		<code>swap</code> returns <code>void</code>
	<li><code>getFirst</code> and <code>getSecond</code> functions (constant member functions) 
</ul>

The usual rule:

<ul>
	<li><code>&lt;&lt;</code> and <code>==</code> shold be declared non-member friends
	<li><code>getFirst</code> and <code>getSecond</code> functions should be declared constant member functions 
</ul>


The user of the class interacts with obejects of the class using integers; the fact that there are pointers internally is completely hidden. Thus
the constructor accepts integers, not pointers to integers; similarly <code>getFirst</code> and <code>getSecond</code> return
the integers, not the pointers to integer data members.