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.
Q: [[-42, 9, -13], [-39, 49], [20, 1, -32], [5, -18], [-25, -31], [-33, 15, 2, 31, -12]]
A: 
[-42, 0, -640, -18, 0, -24]