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.

[[14, 24, -49, -21], [-8, -48], [-17, -2, 23, 20], [21, -14, 13, 35], [-33, -48, 47, 6], [38, 42, 47, -9]]
[336, 384, -40, -14, -288, 1596]

[[-38, 2, 1, 3], [43, -2, -1], [-18, 23, 27, 8, -3], [19, 26, -35], [31, -44], [16, 34], [-2, -18, -42], [39, -24, -50, -31, -18], [-1, -49, -11, 31]]
[-76, -2, -144, 26, -44, 544, -1512, -21600, 0]

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

[-288, -680, -1680]