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: [[-10, 39, -31, 2], [-45, 4, 34], [-19, 25, 47, -4], [15, -3], [-10, 18, 50, 30]]

Answer: [-20, 136, -4, 0, -270000]


Question: [[29, 40, 15], [34, 17, 34, -26], [-9, -13, 42, 42], [13, -1, 3, -22, -14], [-35, 19, -17, -48]]

Answer: [40, -30056, 1764, 308, -48]


Question: [[0, 16, -20], [22, 15, 37, 5, -35], [-22, 41, -10, -45, -35], [-36, 25], [31, 1], [8, 27, -21, 1, -39], [35, -35, 16, -2, 40], [36, -30], [-41, -9, 29], [43, 50, -15], [11, -48, 43, -11], [-37, -43]]

Answer:
[0, 22, 220, -36, 0, 8, -1280, -1080, 0, 50, -48, 0]