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: [[-14, 36, -38], [-18, -29, 0, 17, -44], [-31, 50, 3], [2, 0, 38, 8, 4]]

[19152, 0, -4650, 0]