Please Help :)

[$peed & $ex]

Dim C As Integer
For C = 0 To Combo2.ListCount - 1 & Combo1.ListCount - 1
List1.AddItem Combo2.List(C) & Combo1.List(C)
Next C

I have this in my command button.What I want to do is add everything in Combo2 and Combo1 right after it to List 1.SO I add Combo2 to List 1 and after it it adds the lsit from COmbo1.SO whats wrong with this code?Well thx guys