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.

[[31, -12, -45, 3, 50], [-38, -34, -10, 2], [-17, -29, -2, -10, -15], [-1, -13, -24, 48, 25], [-33, -29, 13, 41], [-19, 42, 26, 40], [21, 3], [30, -13, 20]]
[-600, -25840, 20, -1152, 0, 43680, 0, 600]

[[-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]

[[-8, -9, -46, 50, -5], [36, 36, 28, -3], [42, 12, -44], [-15, 18, 50], [-17, -41, -22], [32, 38], [49, 23, -33]]

[18400, 36288, -22176, 900, -22, 1216, 0]