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: [[-50, 50, 44, 49, 37], [-21, -9, -40, 0, -49]]

[-199430000, 0]