Ethan is a computer science student. In order to graduate, he needs to take all the required CS courses: CSC150, CSC160, CSC220, CSC310, CSC320, CSC426, CSC427, CSC441, and CSC469. The course prerequisites are:

CSC 150: (none) CSC 160: LA150 CSC 220: (none) CSC 310: CSC150 CSC 320: CSC 160, CSC 310 CSC 426: CSC 220, CSC 320 CSC 427: CSC 160 CSC 441: CSC 22, CSC 16 CSC 469: CSC 320.

Your task is to help him design the sequence of the courses that allow him to complete all prerequisites. Use graph for demonstration, and also adjacency matrix and adjacency list to represent the graph