sort dictionary with custom key in swift 2 : <p>I have a dictionary with keys in format: [1:ABC, 113:NUX, 78:BUN, 34:POI, 223:NTY]</p>

<p>When I sorted the array of keys, i get the sorted key array as: [1:ABC, 113:NUX, 223:NTY, 34:POI, 78:BUN]</p>

<p>But I want the sorted array as: [1:ABC, 34:POI, 78:BUN, 113:NUX, 223:NTY] </p>

<p>what am I missing here? what additional sort should I add?
* I am using Swift 2</p>
