Draw hierarchy charts or flowcharts that depict the programs described below. $($See Ap$,$ for instructions on creating flowcharts.$)$

$30.$ Available Credit

The following steps should be followed in a program that calculates a c available credit:

Display the message "Enter the customer's maximum credit."

Wait for the user to enter the customer's maximum credit.

Display the message "Enter the amount of credit used by the customer."

Wait for the user to enter the customer's credit used.

Subtract the used credit from the maximum credit to get the customer's credit.

Display a message that shows the customer's available credit.