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, 37, -20], [13, 17, 13, -33, 2], [-8, 34, -44]]

SOLUTION: [-20, 2, 11968]

PROBLEM: [[-13, -21, -13, 37], [-46, -18, 8], [28, -15], [37, 12, -49], [-44, 50, -16, -39, -20], [36, 10, 45, 23], [-18, 6], [-37, 35], [-19, 5], [-19, 41], [-50, -12, -44, -14, 0], [-29, -11, 39, 3]]

SOLUTION:
[0, 6624, 28, 12, -704000, 360, -108, 0, 0, 0, 0, 0]