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: [[-39, 26], [-10, 42, -49, -26, 49], [-47, -44, 32], [36, 40, -20, -16], [3, 22, 8], [-18, -25, 6, 45, -50], [-12, -37, 35], [22, -12, -49], [13, 19], [-22, -30], [-46, -6], [-10, 10, 35], [25, -1, -8], [26, -12, 49, -40, -14], [34, -32]]

SOLUTION: [26, 10920, -1408, 460800, 176, 5400, -12, -264, 0, 660, 276, -100, -8, -174720, -1088]

PROBLEM: [[23, 12], [7, -46, 34, -2, 22], [-20, 12, -45, 15, 6], [30, -4, 50, -26, -39], [26, 43, -22, 34, -29]]

SOLUTION: [12, 68816, -1440, 156000, -19448]

PROBLEM: [[42, 40, 13], [25, 47, 11, 34, 18], [-37, 30, 42, 45]]

SOLUTION:
[1680, 612, 1260]