Fastest Way to declare this list.

[Kowalski]

I need to declare a list (a "matrix", in fact) by inserting new 2-dimensional lists into it, and i´m using append for that (code below):

M = []
for i in range (n): M.append([int(i) for i in input().split()])

Is there a quicker way to do this?

[ODIS]

Can you show an example of the input and the result list?

[DeaD_EyE]

[list(map(int, input().split())) for _ in range(n)]