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: [[-4, -31, 11, 39], [17, -7, -44, 3], [-17, 33, 18, -42], [-20, -13, -9, 48, -15]]

Answer: [-4, -44, -756, -960]


Question: [[-50, 11, 44], [50, 36], [-20, -48, -10, 23], [15, -11, 9, -2, -1], [37, -28], [-46, 44, -41], [20, 25], [7, 41, 2, -17, 18], [9, -29, 4], [-45, -15, -50, -5, -42], [-15, -21, -50, 35], [10, 44, -48, 16], [32, 28, -7, -30]]

Answer: [-2200, 1800, -9600, -2, -28, -2024, 20, 36, 4, 2100, -50, -337920, -26880]


Question: [[12, 24], [10, -6, 47], [49, 20, -40], [20, -24, 20], [-41, 2, -8, -37, -47], [-3, -17, 43], [24, -25, 11], [38, 41, 33]]

Answer:
[288, -60, -800, -9600, -16, 0, 24, 38]