You should see
character_count('Mississippi', 'i'): 4
character_count('Mississippi', 'p'): 2
character_count('Mississippi', 's'): 4
string_reverse('Mississippi'): ippississiM
string_reverse('radar'): radar
digits: ['zero', 'one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine']
0: zero
1: one
2: two
3: three
4: four
5: five
6: six
7: seven
8: eight
9: nine
digits_to_words(512) five one two
digits_to_words(10428) one zero four two eight
first_name('Glenn Hoffman'): Glenn
last_name('Glenn Hoffman'): Hoffman