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, -3, 16], [-46, 24, -47, 7], [-35, -28], [12, 7], [50, 13], [9, 35, 0], [-25, -50], [-16, 13], [-42, -7, 41, 23, -22], [-31, 42]]

SOLUTION: [16, -1104, -28, 12, 50, 0, -50, -16, 924, 42]

PROBLEM: [[12, -6, -21, 33], [-8, -29, -44, 38], [-45, -21, 18], [8, -17, -26, 50], [0, 18, -38], [2, -24], [-8, 34, 25, -10]]

SOLUTION: [-72, 13376, 18, -10400, 0, -48, 2720]

PROBLEM: [[-11, 30], [30, 45, 4, 46], [48, -37], [-5, 19, -33, 49, 25], [24, 44, -43, -25], [-29, 12, -10], [48, -26], [-10, -23, 13, -39]]

SOLUTION:
[30, 5520, 48, 0, 1056, -120, -1248, -10]