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: [[-7, 26, -31], [-8, 46, -12, 16], [-16, -50, -11, -49, -50], [-47, -37, 42], [7, -4], [13, 21, 47, -16, 47], [-16, 17], [29, -9, -17, 38, 12]]

[5642, 70656, -21560000, 73038, -28, -9648912, -272, 2023272]