Interview Question - How to separate positive and negative numbers from column

This one is the interview question asked to one of my friend for the post of t-SQL developer. 

We have a table with ID column containing following values in it 

And the Output should be 

How would you go about it and write the query for it.

Before proceeding for a solution lets build the table and populate it with the required values.

DECLARE @TAB TABLE

(

ID SMALLINT

)

INSERT INTO @TAB 

SELECT 71 UNION ALL 

SELECT 24 UNION ALL

SELECT -12 UNION ALL

SELECT -129 UNION ALL

SELECT 13 UNION ALL

SELECT 0 UNION ALL

SELECT -90

SELECT * FROM @TAB

There might be multiple solutions for this problem but this is what I could think of 

;WITH Positive AS

(

SELECT 

ID AS Pos

,ROW_NUMBER() OVER (ORDER BY ID) AS RANK1

FROM @TAB

WHERE ID >= 0

),Negative AS

(

SELECT 

ID AS Neg

,ROW_NUMBER() OVER (ORDER BY ID DESC) AS RANK2

FROM @TAB

WHERE ID < 0

)

SELECT Pos,Neg 

FROM Positive

FULL OUTER JOIN Negative

ON RANK1 = RANK2