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Question 32 (Mandatory) (10 points) a) Determine the number of 5-character security codes that could be formed under each set of criteria, with repetition permitted. ") All characters are lower-case letters. "ll The first character must be a capital letter or digit. All other characters are lower- case letters. ill) The first and last characters must be capital or lower-case letters. The other characters must be digits. b) Design a set of rules with at least one restriction for a security code that would result in between 300 000 000 and 1 000 000 000 different codes