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: [[6, -3, -18, -8], [4, -9, 5], [-17, 6], [45, 1, 23]]

[-2592, -180, -102, 1035]