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: [[-46, -9, -48, -4, -3], [-36, -26, 43, -50, 31]]

[-238464, -62384400]