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: [[24, 14], [45, 10, 3, -20, -48], [31, -38, -37, 5]]

[336, 1296000, 217930]