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: [[21, -44, 50], [32, 16, 10, -27, -3], [-41, -13, -35, -21], [38, -47, -49], [-10, 9]]

[-46200, 414720, 391755, 87514, -90]