This week was quite interesting for me as I learned some more new features about Stack ADT like how to make a subclass in an already existing class, to raise exceptions in the result. Although the week was quite interesting, but still I faced some problems in making a subclass as well as using sets and lists in Stack. But, after a discussion with my TA during the lab, everything was clear. Finally. I can use the functions of Stack taught till now easily. After these three weeks of programming, I'm really excited to gather more information for programming in the coming weeks.