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.

[[-14, 2, 24, -49], [-18, -8, 18, 50], [-40, 37, -41, 7], [-15, 37, 36], [-17, -5, -10, 43], [47, -2, 28], [2, 1, 32], [19, 31], [-31, -44, -31, -20, -21]]
[-672, 129600, -40, 36, -10, -56, 64, 0, 880]

[[10, 39, 34], [13, 17, -50, -1], [-31, -35, -24], [44, -17, 46, -37]]
[340, -50, -24, 2024]

[[2, 18, 16], [1, 50], [-13, -25, -1], [-38, 15]]

[576, 50, 0, -38]