python common list of values from two lists

Question

a = [1, 2, 4]

b = [9, 2,2,2,3,3, 4,4]

c= set(a) & set(b)

print(c)

Result: {2, 4}

i need it like: {2,2,2,4,4}

Thank you

Answer 1

If you'd like the duplicates in the result to correspond to the duplicates in b . (as in your example)

c= [i for i in b if i in a]

output:

[2, 2, 2, 4, 4]