String join from 2 lists with different length sub-lists

[Theo_NL]

Hi all,

I am trying to combine strings from different lists.
The sublists have different length

list 1:
1 A
2 B
3 C

list 2:
1 a,b,c
2 g
3 y,x

Result should be
1 A-a , A-b, A-c
2 B-g
3 C-y , C-x

Somehow I cant figure this out.
What am I missing here?

With regards,

[Brendan_Cassidy]

This should hopefully help direct you into what you want