I stucked with this question

Question

What is the result of this code?

fib = {1: 1, 2: 1, 3: 2, 4: 3}
print(fib.get(4, 0) + fib.get(7, 5))

Answer 1

Why dublicating?
https://www.sololearn.com/discuss/3027138/?ref=app
https://www.sololearn.com/discuss/3027139/?ref=app