How to choose only one items from each rows from 3 columns of 10 rows each?

[Purnakami]

I have been trying to find a way to choose only one iteams from 3 rows that i have and leave the rest and i want to have a columns of 10 where all the rows are only one iteams selected from each rows. Is there any wat to do it?

[ronrsnfld]

There are several ways to do that.

If you need assistance in figuring that out, you'll need to supply sample data as text that can be copy/pasted, along with a screenshot of your expected outcome from that data, and the algorithm you are using to select the particular output.