Boxing/Unboxing in C# : <p>I'm having trouble with a C# assignment dealing with boxing/unboxing. Here are the directions:</p>

<ul>
<li>Create an empty List of type object</li>
<li>Add the following values to the list: 7, 28, -1, true, "chair"</li>
<li>Loop through the list and print all values (Hint: Type Inference might 
help here!)</li>
<li>Add all values that are Int type together and output the sum</li>
</ul>

<p>The trouble I am having is declaring a list that doesn't specify the data type so I can add multiple values of different data types to the list in the object (see Step 2).  Any advice?</p>
