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: [[1, -18], [-31, 48], [13, 47, -41], [-20, 24], [47, 33, 17], [-13, -12], [21, -21], [2, -19, -41, 6], [-4, -49], [-12, 4, -38, -36, 7], [42, -7, -36, -5, 35], [-7, -10, 42]]

Solution: [-18, 48, 0, -480, 0, -12, 0, 12, -4, -65664, -1512, -420]