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: [[43, 18, 40], [14, -17, 10], [36, -42, 13, 13], [-45, 25, -15, 7]]

[30960, -2380, -255528, 118125]