first n values from all slicer selection

[Anonymous]

Line 1: In a slicer i have "a,b,c,d,e,f,g,h" available.

Line 2: In that slicer i have selected "a,b,c,d,e" from the list in Line 1.

In a card visual, I want to retrun only the first 3 selections from the list in Line 2.

I my case the result will be "a,b,c" .

Please what dax can i use here?

I know this dax will retun all items selected: CONCATENATEX(VALUES('Table[column]),'Table'[column]," , ",'Table'[column],ASC)

But i only want only the first 3 items from this and not all selections.

[daxer-almighty]

www.dax.guide/topn