From time to time you have to solve some task without your favorite tool or library. To simulate this situation in a simple way, we want you to implement the sum() function in a very restricted environment.
Given a list of numbers, you should find the sum of these numbers. The code for your solution should not contain any of the banned words, even as a part of another word.
The list of banned words is as follows:
- sum
- import
- for
- while
- reduce
- eval
- __ (two underscores)
Input: A list of numbers.
Output: The sum of numbers.
Example:
restricted([1, 2, 3]) == 6
restricted([2, 2, 2, 2, 2, 2]) == 12