=INDEX($C$1:$C$16700,MATCH(1,INDEX(($B$1:$B$16700="A")*($B$1:$B$116700="B"),0),0))
On my spreadsheet, I had two columns, one for work shift, and one for what printing press was used.
Now both columns are filled with these formulas. I don't recall writing them.
I'm a little bit confused as...