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: [[-46, 26, 30, -4, -38], [-10, 3, -26, 19, -45], [-15, 47, 21, -23, 29], [-24, 39], [27, 20, 40, -20], [24, -31], [26, -9, -5], [-29, -46], [-34, -30, 8], [21, -12, 8]]

SOLUTION: [-5453760, 260, 0, -24, -16000, 24, 26, -46, 8160, -96]

PROBLEM: [[35, 17, 7, -41, 22], [33, -17], [-50, 31]]

SOLUTION: [22, 0, -50]

PROBLEM: [[30, 22], [41, 21, -21], [1, -1, -26, 18], [-5, -3, -5]]

SOLUTION:
[660, 0, -468, 0]