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: [[1, 46, -20], [36, -9, 24, 43, -5], [-45, 7], [29, -3, -23, 47, 23], [-12, -6], [40, -32, 4], [-17, -30, 13, 9]]

SOLUTION: [-920, 864, 0, 0, 72, -5120, -30]

PROBLEM: [[-27, 11, -13, 21, -36], [-11, -15, -17, -24, 16], [12, 15, -3, 21, -4], [-28, -2, -38]]

SOLUTION: [-36, -384, -48, -2128]

PROBLEM: [[-50, -31, 17, 12], [-42, 15], [49, 27, -35], [-50, 28, -14], [-10, 34], [18, 39, -35], [37, 9, -23], [34, -49, 5]]

SOLUTION:
[-600, -42, 0, 19600, -340, 18, 0, 34]