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, -11], [29, 18], [43, -44, 5, -19], [-37, 25], [-43, -30, 12], [28, -46, 45, 27, -21], [16, 34, -37, -10, -49], [-3, 34, 40, 15, -9], [-34, 15, -13, -2]]

[-550, 522, 179740, -925, 15480, 32863320, -9862720, 550800, -13260]