Wrong output

Question

wrong output which are expected when using math module in python3
# i want output is 60
# but in my code is 20*3
# previous i wrote in python2 , it running as well
# now i trying write in python, an error occured

https://code.sololearn.com/cbYl68H6jubq/?ref=app

# I used module math in python3
# should if i input 20*3 , output must be 60
# but my output remains 20*3

code:
from math import*
while True :
varBil = input("_>")
if varBil == "" :
break

Answer 1

Sukma-chan input returns a string.
if you want you can use eval to evaluate an expression in the string returned:

varBil = input("_> ")
print(eval(varBil))

Answer 2

to add to the above comment. In Sololearn/in this case, while loop will return eof error unless you leave an empty space to the input lines

Answer 3

thanks ulisess cruz and markus kaleton