Unless it's always 4 values (or some other static number), you probably need to use a string-parsing function. There are several out there that you can use. Look up Jeff Moden's article on the subject for some suggestions.
If it's a fixed number of entries, there are easier ways to do it.
- Gus "GSquared", RSVP, OODA, MAP, NMVP, FAQ, SAT, SQL, DNA, RNA, UOI, IOU, AM, PM, AD, BC, BCE, USA, UN, CF, ROFL, LOL, ETC
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