Select single letters from string based on separate string

[Jpen10]

I Breeden, Thank you very much. I have a font that is specific to UPCA. the bars are set for consecutive letters and a couple of symbols. The solution you provided gave me the necessary code to equate the two. I can now enter the 11 numbers and it will figure the check Digit, then it converts the entire 12 digits to the font readable text for a UPCA symbol. I added, with your code, the first number, the next 5 numbers, the separator, the last five (your code) and the check Digit. I've worked on this ever since since I coded a program in 1983 in Basic and QBasic. I moved on to Excel and then to Microsoft Access, both with macros in Visual Basic. The program won't produce a scanner readable UPCA symbol. Again my thanks.
Jim