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.

[[-12, -16, -49], [38, 8], [41, -37, 4, 31], [37, -10, 8, 31], [-43, -5, 13]]
[192, 304, 4, -80, 0]

[[-26, -47, 10, -26], [14, -47, -18, 12], [-33, -10], [-50, 23, -25, -48, 26], [4, 34, -30, 37, -23]]
[6760, -3024, -10, 62400, -4080]

[[-46, 32, 0], [0, 37, -4, -33, -13], [6, -4, 37, -20, 37], [19, 45, -31, 10, -39], [-3, 5, -27, -28], [-2, -5, -18, -10], [28, 34], [-18, 0, 50, 12], [20, 47, -35, 38, 12], [-23, -3, -34, -49, -21]]

[0, 0, 480, 10, -28, -360, 952, 0, 9120, -34]