Rakesh, if you simply take the Location Id to display won’t you get desired results.
Suppose you are selecting 4 values in your concatenated object and only those 4 location ids will appear in location id column, now if you display only location id object, you should able to achieve what you are looking for.
Now if you need that the output should be in order like 1;2;3;4 , then refer the below post-
aniketp 
(BOB member since 2007-10-05)