Amazon SDE-2 interview questions

First received an email from the recruiter with the link for the assessment round. After 1 day received another email from recruiter that I passed the online assessment and asked my availability for the panel round. After the panel interview, recruiter contacted me with the feedback.

OA and then 4 rounds, 2 dsa - easy 1 lld - design a booking system 1 hld - design amazon notification system they were in random order you must code in java, to leave a good impact thats where I lacked