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: [[31, -45, -20], [12, -34], [-7, 46, 49, -20, -11], [0, -33, 12, -9], [-6, 35]]

[27900, -408, -3471160, 0, -210]