Exercise $3\mathrm{.}3$ The point of this exercise is to make sure you understand how to

write and invoke functions that take parameters.

a$.$ Write a function prototype for a function named zool$()$ that takes three parameters: an int and two char.

b$.$ Write a line of code that invokes zool$(),$ passing as arguments the value $11,$ the

letter a$,$ and the letter z$.$