Create a function named CountChar$()$ that accepts a string array as an argument, and determines total

number of letters, number of digits, and special characters. The function will then print the result to

the terminal screen.

For example,

Function usage: CountChar$("$Hell$0$ WorlD$*$@;$5689")$;

Expected result: Letters $=9,$ Digits $=5,$ Specials $=4$