Join two list one by one

[f.saeedian]

Hello friends
I wan to join members of list A and list B together one by one to be like list C

. How can I do that?

[harilalmn]

Flatten the lists A and B, then Join

[sovitek]

Hello @f.saeedian is it something here you are after ?

[f.saeedian]

Tnx very much