Merge 3 lists into 1 list

Question

I want to merge 3 lists in to a single list. For example, I have three lists:

a = [0, 3, 6, 9]
b = [1, 4, 7, 10]
c = [2, 5, 8, 11]

and fina

Answer 1

import itertools as it

list(it.chain.from_iterable(it.izip(a,b,c)))