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: [[-15, 6, -20, -16, 42], [29, -49, -44], [-48, 1, -19], [32, 40, 43], [-21, 8, 35, -36], [5, 35, -22, 50]]

[-1209600, 62524, 912, 55040, 211680, -192500]