Instructions: 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.
Input: [[42, 8], [-8, 19, -50], [14, -19, 23, 44, -10], [34, 11], [8, -31, 14, -16], [9, 8, -49], [-14, -27, -25, -48, 40]]
Output:
[336, 400, -6160, 34, -1792, 8, 26880]