In this task you will be given a list, of lists, of integers. For every inner list contained in the input list, you should multiply every even number in that list. The output should be a list of integers with the same length as the number of lists in the input list. If there are no even numbers in an inner list you should output 0 for that list.

[[-34, 23, 26], [-28, -41], [-6, -25, 4, -7]]
[-884, -28, -24]

[[18, -11, -13], [-20, -21, 26], [40, 6, 3]]
[18, -520, 240]

[[-7, 49, -9], [45, 40], [-20, -36]]

[0, 40, 720]