=====Function Descriptions=====
The eval() expression is a very powerful built-in function of Python. It helps in evaluating an expression. The expression can be a Python statement, or a code object.
For example:
>>> eval("9 + 5")
14
>>> x = 2
>>> eval("x + 3")
5
Here, eval() can also be used to work with Python keywords or defined functions and variables. These would normally be stored as strings.
For example:
>>> type(eval("len"))
<type 'builtin_function_or_method'>
Without eval()
>>> type("len")
<type 'str'>
=====Problem Statement=====
You are given an expression in a line. Read that line as a string variable, such as var, and print the result using eval(var).
NOTE: Python2 users, please import from __future__ import print_function. 
=====Constraints=====
Input string is less than 100 characters.
#!/usr/bin/env python3

def __starting_point():
    input().strip()
__starting_point()
#!/usr/bin/env python3

def __starting_point():
    input().strip()
__starting_point()