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: [[-19, -4, -22, 13], [-40, -50, 39], [-49, -1, 36, -11, -3], [-16, 49, -44, 36, 12]]

[-21736, 78000, 58212, 14902272]