What carb goes on 024 and 028

[Gravedigger]

I bought two saws in a box partially disassembled.CAD kicking in. One is a Stihl 024 and the other is a 028. What carb belong on which saw.
Tillotson HU40B
Walbro WT22B

 

[cutforfun]

Wt22 goes on the 024