Question 943417
<pre>
1. Choose the middle (3rd) letter any of 5 ways.

2. Choose the 2nd letter any of 4 ways, (as any letter besides the letter you
   chose for the 3rd letter).

3. Choose the 1st letter any of 4 ways, (as any letter besides the letter you
   chose for the 2nd letter).

4. Choose the 4th letter any of 4 ways, (as any letter besides the letter you
   chose for the 3rd letter). 

5. Choose the 5th letter any of 4 ways, (as any letter besides the letter you
   chose for the 4th letter).

Answer = 5󫶘󫶘 = 1280

Edwin</pre>