[Nolug] script to read part of line

I need a quick script (any language) to put the (e.g.) eighth through
twelfth character of each line of a plain text file into a separate
file, each set of characters on a new line. I've forgotten all my sed
and awk, and I just don't have the time to work it all out. Can anyone
post a few lines to me?

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Received on 03/10/05