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: [[35, 21, -23, 48, -16], [50, -50, -29, -3, -41], [46, -41, 2]]

Answer: [-768, -2500, 92]


Question: [[13, 47, -36, -20, -45], [-45, -39, 25, 27], [-34, 26, 5, 15, 30], [-37, -45], [20, -49], [-24, -7, 50, -20], [-15, 15, 46, 36, 30], [2, 41, -17], [-13, -45, -41, -18, 22], [50, -25], [17, 13, -48, -27, -22], [-6, 5, -13, -18], [-15, -15, -37, 22], [30, 47, 6]]

Answer:
[720, 0, -26520, 0, 20, 24000, 49680, 2, -396, 50, 1056, 108, 22, 180]