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: [[-47, 11, -25, -50], [-28, 29, 6], [-8, -1, 10, -23, 10]]

[-646250, -4872, -18400]