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#reader(lib "htdp-beginner-reader.ss" "lang")((modname task-week01-blend) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f () #f)))
#| NOTE: Don't copy/paste this file into an open DrRacket window;
   instead download/save the file, and then choose "File > Open..."

   Task:
   Write the function 'blend' which takes two words,
   and returns their blend: that is, the first half of the
   first word, and the second half of the second word.

   For example:
   - the blend of "smoke" and "fog" is "smog".
   - the blend of "motor" and "hotel" is "motel".

   Write this function, including steps 4,5,7 of the design recipe.
   If your test-cases are good, you'll realize that you need to
   clarify the statement of this problem!

   Some helpful functions (you can place the caret on a word,
   and hit 'F1' to go to documentation:
       string-length    string-append     substring


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