[SOLVED] Seeking Explanation: No output

Question

https://code.sololearn.com/cTGu5qW0kCQ3/?ref=app

I want to perform some mathematical activities (summing up numbers).
I don't get any output in this code. I'm using Python 3.6.4 on Pydroid 3 on Android. I don't get any output in SL CPG either.
I want to know the explanation for this anomaly & how I can solve it.
Thanks in advance.

Edit: It was a noob mistake by an amateur JavaScript developer who thought that for in loop iterates over keys in 🐍Python too 😆

Answer 1

did you wanted this as output?
https://code.sololearn.com/cFnaVqQPx7b4/?ref=app