A set (s1) is a subset () of another set (s2) if all elements that are in s1 are also in s2. Write a function (subset) that takes two lists as input (you can assume that each set does not contain any duplicate elements), and returns True if s1 is a subset of s2. The function will return False, otherwise. Write some code to test your function, as well.

Sample Output for Part 2:

>>> subset([1,9,13,15,23], [1,3,5,7,9,11,13,15,17,19,21,23,25]) True

>>> subset([3,8,13,21,25], [1,3,5,7,9,11,13,15,17,19,21,23,25]) False

use Python 3.6