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.

[[-4, -31, 11, 39], [17, -7, -44, 3], [-17, 33, 18, -42], [-20, -13, -9, 48, -15]]
[-4, -44, -756, -960]

[[-5, 22], [-37, 18], [2, -32, -20, 10], [40, 45, -14, 5], [27, -5, -36, 22, -1], [2, -27, -38, 41], [-41, -16, -12, 18, 11], [17, -45, 23, -49]]
[22, 18, 12800, -560, -792, -76, 3456, 0]

[[-50, -21, -39, -32], [-24, 13], [-43, 13, -16, 21], [-36, -30], [45, -15, -2, -15], [-11, 30], [-43, -31], [17, -49, 37, 27], [-13, -35, 28], [-2, 10, -42], [-39, -5, -5, -14], [16, 38]]

[1600, -24, -16, 1080, -2, 30, 0, 0, 28, 840, -14, 608]

