import random

m = [5,2,6,9,5,2,65,6,5,5,5,5,5]
k = [x for x in range(0,random.randint(0,90))]  # using random.randint() to generate a random list

common_list = [x for x in m for y in k if x == y]  # using list comprehension to seek common elements from the list

new_set = set(k)  # using the set constructor to convert the list into the set so there will be no duplicatopn of the element

final_list = list(new_set)  # converting back into list

print(final_list)