LttP: Powershell Games 2012 - Begineer Event 4

This one was quite interesting, and after reading the Scripting Wife's comments I was determined that I too would  create a one-liner.

Beginner Event 4:

 ForEach($item in (Compare-Object (Get-Childitem "C:\1") (Get-Childitem "C:\2"))){$item.InputObject}

Although normally I would prefer to break it out a bit more to something like this (although it does exactly the same thing):

$Differences=(Compare-Object (Get-Childitem "C:\1") (Get-Childitem "C:\2"))

ForEach($item in $Differences)

{

 $item.InputObject

}

UPDATE:

I probably would've lost a point or two, as there is an even easier way to do that using the "-PassThru" option...

Compare-Object (Get-Childitem "C:\1") (Get-Childitem "C:\2") -Property Name -PassThru