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: [[46, 20, -29], [-11, 14], [-21, 9, -16, -22, 13], [46, -5], [-6, -35], [-48, 45, -25], [-33, 3, -41, 12, -45], [-21, 16, -8, -27], [14, 49], [40, -3]]

SOLUTION: [920, 14, 352, 46, -6, -48, 12, -128, 14, 40]

PROBLEM: [[31, -24, 40, 14], [18, 42, -26, -40, 49], [-31, -21]]

SOLUTION:
[-13440, 786240, 0]