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: [[39, -42, -46], [33, 14, 47], [-44, -12], [14, -3, 11, -34]]

[75348, 21714, 528, 15708]