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: [[3, -16, 13, -48], [-29, -28, -6, 21, -50], [26, 42, 32, 18], [-12, 12, 23], [-12, 29], [28, 43, -35, 12], [6, 22, 17, 49], [-17, 16, -39, -32], [-10, 45, -1, 29]]

[29952, 5115600, 628992, -3312, -348, -505680, 109956, -339456, 13050]