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: [[-8, 23, 0, 29], [-9, 19, -40, 19], [31, -35, 17], [18, 30, 38], [7, -48, -19], [-14, 39], [-21, -2, -15, 7]]

SOLUTION: [0, -40, 0, 20520, -48, -14, -2]

PROBLEM: [[-10, -9, 41, 48], [25, 31, 28], [21, -40, 14], [-12, 34, -32, -37], [30, -45, 21, -4], [15, -23, -49, 50, 30], [33, -9, -13]]

SOLUTION: [-480, 28, -560, 13056, -120, 1500, 0]

PROBLEM: [[19, -31, 34], [-24, -21, 48, -33], [26, 33, 29, 17, 5], [-41, 29, 46], [-20, 16, 50], [-8, 49, 4, -42], [-1, -27, -23, 11, -25], [-23, -45], [-26, 16], [45, 5, -9, -27], [-22, 38, 15], [-41, 49, 47, -50], [47, 9], [-17, -33]]

SOLUTION:
[34, -1152, 26, 46, -16000, 1344, 0, 0, -416, 0, -836, -50, 0, 0]