Definition: In this task you will be given a list of lists, of numbers. For every inner list, you should multiply every number in that list and put the results in your answer. The output should be a list of numbers with the same length as the number of the lists in the input list.
Input: [[-18, 42, -36, 15], [-9, -37, 19, -47, -11], [32, -3, -17], [-34, 39]]

[408240, 3271059, 1632, -1326]