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.
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Question: [[20, -49], [24, -16, -38, 50], [-40, 37, -13], [-21, 45], [-17, 17, -5], [-2, 47, -16, -2, -17], [22, 37, -27, -31, 44], [-8, 28, 44, 21, 37]]

Answer: [20, 729600, -40, 0, 0, -64, 968, -9856]


Question: [[-30, -2, 30, 1, -2], [26, -44, -48, 43, 43], [-22, -14, -38, -40], [-36, 8, 23, 3, 37], [14, -49], [15, 4, 44], [18, -22]]

Answer: [-3600, 54912, 468160, -288, 14, 176, -396]


Question: [[-19, -33, -28, -35, -12], [-4, -7, -15, -3], [-8, -16, -21, -1]]

Answer:
[336, -4, 128]