On Jul 31, 1:34*pm, "Mathew" wrote:

You say if a1=2 then "AB", but you also say if a1=2 then "BA" ???

I knew I'd explain something incorrectly, I was going to write this
way:

if a1=1 or 2 or 3 then b1=AB also if a1=2 then b1=BA and also if a1=
value other than 1 or 2 then b1=CA

can this work somehow? Thanks