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.

[[-43, 5], [2, 43], [7, -2, 42], [-20, -43, 40]]
[0, 2, -84, -800]

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

[[-50, 6], [33, -26, -11, -49], [-31, 12, 0, 45, -14], [-17, -22, -29, -20, 48], [-48, 5, 3], [-42, 41, -26, 25], [36, -20], [-8, 32], [35, -4]]

[-300, -26, 0, 21120, -48, 1092, -720, -256, -4]