Draw a use case diagram for (a course registration system) based on the following requirements:

1- The system shall allow the users to register a new account. 2- The system shall allow the users to login into their accounts using valid username and password. 3- The system shall allow the student to add a new course. 4- The system shall allow the student to drop a course. 5- The system shall allow the professor to select a course to teach by enter the course ID and view a course catalog. 6- The system shall allow the professor to submit grades. 7- The system shall allow the registrar to maintain professor information. 8- The system shall allow the registrar to maintain student information. 9- The system shall allow the registrar to close the registration process based on the billing system. 10- Billing system shall provide the registrar with the financial data.

You can use a paper to draw it and submit the solution as image file or use an online tool such as draw.io and creatly.