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: [[48, 41, 24, -29], [49, 22, -2, 27], [-39, 49, 37, 38, -29], [-18, 23, -5]]

SOLUTION: [1152, -44, 38, -18]

PROBLEM: [[-10, -39, 40], [-5, 36, -28, 48], [5, -50, 31, 10, -16]]

SOLUTION: [-400, -48384, 8000]

PROBLEM: [[-16, -26, 14, -38], [-6, 29, -24, 33], [24, 25, -5, 16], [19, -3], [-37, -40], [38, 31, 31, 40], [-50, -39]]

SOLUTION:
[-221312, 144, 384, 0, -40, 1520, -50]