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]

[[-42, -15], [37, 20, 12], [42, 39, -44], [-47, 24, -15, 24, -43], [37, 4, 17, -29, -35], [-44, -35, -3, 9, 3], [3, -45, 41], [-43, -19, -26, 26], [-10, -38], [21, 42, 46, -35], [28, -7, -23, 38, 29], [40, 11, -47, 37], [-49, -29]]
[-42, 240, -1848, 576, 4, -44, 0, -676, 380, 1932, 1064, 40, 0]

[[34, -6, 40, -18], [42, -7, 38, -36, 31], [-21, -23], [-20, -45, -12, -31, 12], [34, -32, 25, 15, 43], [-37, 46], [40, -16, -4, -14], [40, 3, -36, 30, 1], [-26, 12, -28]]

[146880, -57456, 0, 2880, -1088, 46, -35840, -43200, 8736]