Please help to understand this CASE statement

Hi all and sorry for what is probably a very stupid question. I am trying to translate in Pascal a program written in BASIC and I am stuck with a statement for which I do not find any documentation: the statement is

Select Case X
Case 21, 24, 25, 27 To 32, 34, 35, 38
etc.

I know e.g. Case a To b, but I am puzzled by the multiple ranges which I do not know how to understand!

Thanks in advance to whomever will reply

P.S. For your info the full statement is

Code:

Select Case X
Case 21, 24, 25, 27 To 32, 34, 35, 38
temp = temp - 1
Case 33, 36, 37, 39, 40
temp = temp - 2
End Select

 

thanks, so it must be read as

Case 21, 24, 25, (27 To 32), 34, 35, 38

 

Thank you again, it works perfectly