I beleive this falls under sorting if not, sorry.

I have 2 colums of numbers/text.
123 156
125 256
256 359
365 598
458 875
875 890

I would like to sort and increment (insert) a blank space from top to bottom
as the numbers increment down as shown below.

123
125
156
256 256
359
365
458
598
875 875
890

Is this posible to do with macros or VB. Thanks for your help in advance,
Bob