instruction:
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.
question:
[[-4, -31, 11, 39], [17, -7, -44, 3], [-17, 33, 18, -42], [-20, -13, -9, 48, -15]]
answer:
[-4, -44, -756, -960]


question:
[[-10, 39, -31, 2], [-45, 4, 34], [-19, 25, 47, -4], [15, -3], [-10, 18, 50, 30]]
answer:
[-20, 136, -4, 0, -270000]


question:
[[-6, 11, 5, 37], [31, -3, 34], [-18, -1, -8, -2], [11, 41], [3, 27, -46, 37], [-48, 12], [25, 31]]
answer:

[-6, 34, -288, 0, -46, -576, 0]