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: [[18, -1], [-22, -50], [31, -29, 49], [39, -26, -20, -44], [-46, 6, -30, 5, -24], [19, 49, -5], [-26, -1, 5], [47, 14, -16, 13, -32], [40, 8, 29, 5], [40, -43, -14, 37]]

SOLUTION: [18, 1100, 0, -22880, -198720, 0, -26, 7168, 320, -560]

PROBLEM: [[26, -33, 44, -50, -6], [11, -24, -46, 48], [-29, -38, 2], [-10, -39, -30], [41, -46], [17, 22, 11, -45], [-2, 27, 20], [-5, 41, 24, -43]]

SOLUTION: [343200, 52992, -76, 300, -46, 22, -40, 24]

PROBLEM: [[-34, 50, 5], [24, 22, -35], [24, 36, 5], [-39, -43], [36, -31, 22], [-34, 39, 47, -22]]

SOLUTION:
[-1700, 528, 864, 0, 792, 748]