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: [[-21, 19, 22, 40, 19], [-20, -11, -2], [10, -1], [20, -49, 17, -10], [-16, -28, 34, -25, 38], [18, 47, -38, -25, -50], [-4, -22, -46], [29, -18]]

[-6671280, -440, -10, 166600, -14470400, -40185000, -4048, -522]