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, 2, 24, -49], [-18, -8, 18, 50], [-40, 37, -41, 7], [-15, 37, 36], [-17, -5, -10, 43], [47, -2, 28], [2, 1, 32], [19, 31], [-31, -44, -31, -20, -21]]
[-672, 129600, -40, 36, -10, -56, 64, 0, 880]

[[40, 4, -24], [-27, 46, 10, 23], [32, 39, -12, 33, 13], [36, -48], [-25, -7, -28], [-16, -16, -10], [11, 24, 50], [13, -31, 39, -4, 8], [19, -19, 39, 3], [-34, 50], [-18, -35, -29], [-25, -28], [-41, 3], [-26, 34, 19, -37], [-33, -47, 18]]
[-3840, 460, -384, -1728, -28, -2560, 1200, -32, 0, -1700, -18, -28, 0, -884, 18]

[[21, 41], [-6, 21, -27, -24, 19], [34, 1, -38, -17, 39], [20, 26, 14, 42, 29], [2, 18, 34, -11], [-36, -6]]

[0, 144, -1292, 305760, 1224, 216]