Well although they are the same course, the final seems to be written by different people.
So we had two sample papers on moodle, both are 1111 samples.
Then we got to the final and it was exponentially harder.
To put it into some context, the 1111 papers were equivalent to the first 20 questions of each textbook chapter. However the 1112 paper had questions equivalent to the last 20 questions of a textbook chapter (note the chapters have about 100 questions and every twenty you move one with get twice as hard).
So I can say maybe today's exam was a little destructive haha.
A few people even walked out early. Everyone got shattered.