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.
Input: [[25, 46], [14, -9], [-35, -21, -31], [42, 47, -22, 37, -50], [42, 14], [34, -28, 18, -47], [-32, 28, -3, 7, 44], [-36, 13, -6, 31]]
Output:
[46, 14, 0, 46200, 588, -17136, -39424, 216]