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.

[[-23, 37, -17], [23, 19, 14, -43, -31], [-45, 6, 42, -45, -12], [14, -4, 37, 15]]
[0, 14, -3024, -56]

[[-8, -49], [20, -38], [12, -47], [23, 46, 38], [-38, -27], [27, -29, 50], [-23, -40, -17, 44, -11], [25, -50, 25, 11, 11], [38, -2, 17, 5, -29], [11, 9, 17], [8, 33, 5, 45], [-2, -30], [42, 40, 7, -11, 50]]
[-8, -760, 12, 1748, -38, 50, -1760, -50, -76, 0, 8, 60, 84000]

[[9, 24, 46, 36], [44, -10, 41], [3, 5, -10, 8], [34, 0, 20, 16], [25, 17], [-13, 2, -30, 19, -50], [46, -50]]

[39744, -440, -80, 0, 0, 3000, -2300]