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.
Example: [[7, -3, -3, 11], [-6, -6, -5, 2], [-8, 4, -3]]
Example solution: [0, 72, -32]
Example explanation: The first inner list has no even integers, so the first number in the output is 0. The second list has -6, -6, 2 for even integers so the second output is 72. The third list has -8, 4 as even numbers so the third output is -32. This is a good example.

Problem: [[-49, 1, -47, -37], [-43, 39, -13, 17], [-33, -30], [33, 11, -1, -32, 27], [23, 46, 6, -5], [46, -13], [-35, -34], [-20, 43, -20], [50, -48, -30], [46, -15, 30, -50], [-42, -30, 22], [-38, 44, -18, -37, -18], [31, -45, 37, 47, 45]]

Solution: [0, 0, -30, -32, 276, 46, -34, 400, 72000, -69000, 27720, -541728, 0]