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.

[Q]: [[2, 31, 49], [7, -48], [-5, 16, 2, 28]]
[A]: [2, -48, 896]


[Q]: [[0, 50, 16, -48, 7], [-2, -21, 12, 44], [20, -45, 14, 47], [-48, 10, -17, 34, 21]]
[A]: [0, -1056, 280, -16320]


[Q]: [[17, 35, 7], [-37, 2, -34, 1], [38, 25]]
[A]:
[0, -68, 38]