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: [[17, -47, -13, -39, 16], [-36, -28], [-36, 28, 20, 15, 14], [-13, -50, 11, -15, -10]]

[-6481488, 1008, -4233600, 1072500]