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: [[5, -8], [39, 31, 0, 28], [-22, -41, -50], [-13, 30, -12, 13, -3], [-2, 2, -14, -18, 5], [23, 23]]

SOLUTION: [-8, 0, 1100, -360, -1008, 0]

PROBLEM: [[-9, -26], [-26, 23, -3, -25, 5], [-28, -15], [45, -6, 12, 49, 45], [31, 22, -11], [41, -34, 18, -7, 31], [43, 23, -49, -34], [27, 0, -39, -40, 27], [-27, -4, -3, -32, -35], [-32, 11, 24, 11, -35], [42, -10, -43, -37], [-43, -2], [-28, -38, -17, 34, 19], [-46, -10]]

SOLUTION: [-26, -26, -28, -72, 22, -612, -34, 0, 128, -768, -420, -2, 36176, 460]

PROBLEM: [[31, 5, -1], [-50, -39], [-10, -7, 17, 8, 18], [22, -46, -6], [-42, -4], [15, 20, 28, -22], [-21, -46]]

SOLUTION:
[0, -50, -1440, 6072, 168, -12320, -46]