TASK DEFINITION: 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.
PROBLEM: [[17, -18, 9], [-42, -12], [39, -2, 31, 14], [-16, -9, -20], [19, -30], [47, -29, -40]]

SOLUTION: [-18, 504, -28, 320, -30, -40]

PROBLEM: [[-29, -40, -45, -11, 8], [-44, -42, -37, -7], [0, -12], [25, -48, -44, 14], [12, -44, 27], [13, -46, -27], [34, -20, 29]]

SOLUTION: [-320, 1848, 0, 29568, -528, -46, -680]

PROBLEM: [[35, -31, 48, -20], [17, -24, -10, -44, 33], [10, -48, 20], [29, -42, -16], [13, 48, -4, -28, 20], [-7, 50, 21, 9], [25, -48, 41], [10, -49], [21, -47], [45, -10, 41, 21, 49], [-23, -46, -8], [-37, -47, 15, -45], [-15, 44, 11, 42, -40], [-16, 20, -30, -17, 27], [-37, 21]]

SOLUTION:
[-960, -10560, -9600, 672, 107520, 50, -48, 10, 0, -10, 368, 0, -73920, 9600, 0]