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: [[-41, 42, 42], [-42, -21], [-3, -33, -8, -11, 28], [43, 20, -27], [40, 42, 30], [16, 10], [-11, 29, 48], [-32, 13, -50], [-26, 3, 2], [3, 15, 35, -33], [0, -18, 38], [-2, 11, 35], [6, 26, 46], [-11, 41, -7, -44, -15], [46, -40, 4, 12, -23]]

SOLUTION: [1764, -42, -224, 20, 50400, 160, 48, 1600, -52, 0, 0, -2, 7176, -44, -88320]

PROBLEM: [[-27, -15, -29], [-30, 44, 42, -2, 31], [-20, -21], [49, 36, 49], [-36, -45, 44, -47, -34], [41, 37, -29, 23, -42], [25, 46, -12, 49, -49], [-22, 1], [-3, 21, -20, -48], [-39, -9, 26, 22]]

SOLUTION: [0, 110880, -20, 36, 53856, -42, -552, -22, 960, 572]

PROBLEM: [[42, -10, 5], [18, 44], [-14, 5, -9], [-25, -18, -32], [-50, 4, -48, 48], [-40, 27, -35, 5], [14, -27, -40], [-24, 25, 46, -36], [-25, 25, 32], [-13, 49], [9, 3], [-47, -1, -50, -10]]

SOLUTION:
[-420, 792, -14, 576, 460800, -40, -560, 39744, 32, 0, 0, 500]