Answer 1

#May you messing up input() with print().. try this code

x = 2
print(x) # outputs 2
x += 3
print(x) # outputs 5

# check in playground.

Answer 2

Yes. You confused about input() , print() .
By the, this is q/a section . You can only post questions related to programming and answer in replys.. Any others comes into spamming of the thread. You can use your feed post section for information sharing..

Edit:
Once read these..

https://www.sololearn.com/discuss/1316935/?ref=app
https://www.sololearn.com/discuss/333866/?ref=app