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: [[-44, -20, 18], [46, 29], [-32, -31, -49], [44, -22, 34, 38], [47, 21], [-40, 38], [-42, -16, 18, -15], [-49, -4], [22, 16, -45], [-47, 44], [-18, -39, 31], [26, -26, 24, 42], [13, 7, 5, -20, 8], [-27, -26]]

SOLUTION: [15840, 46, -32, -1250656, 0, -1520, 12096, -4, 352, 44, -18, -681408, -160, -26]

PROBLEM: [[6, -48], [-34, 20], [-42, 40]]

SOLUTION: [-288, -680, -1680]

PROBLEM: [[15, 45, -1, 13, -15], [50, 29], [19, 40]]

SOLUTION:
[0, 50, 40]