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: [[32, -24, -39], [-49, 30], [32, -22, -10, 22, -15], [-28, -36], [-14, -4, 5, -21]]

SOLUTION: [-768, 30, 154880, 1008, 56]

PROBLEM: [[-38, 2, 1, 3], [43, -2, -1], [-18, 23, 27, 8, -3], [19, 26, -35], [31, -44], [16, 34], [-2, -18, -42], [39, -24, -50, -31, -18], [-1, -49, -11, 31]]

SOLUTION: [-76, -2, -144, 26, -44, 544, -1512, -21600, 0]

PROBLEM: [[-1, 17], [-20, -19], [-36, 7], [-29, 10, -35, 25], [-44, -8], [-27, -34], [47, -14, -8, -42], [35, -18], [-39, -24, -4, 41, 47], [50, -32, -46, -9], [-23, 50, 49, -25, -25], [-46, 47], [-49, 5, 11, 44], [16, -33, -42, 27, -33]]

SOLUTION:
[0, -20, -36, 10, 352, -34, -4704, -18, 96, 73600, 50, -46, 44, -672]