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: [[20, 18, -32, 31, 14], [-45, 33, 3], [35, -37, 9, -47, 1]]

[-4999680, -4455, 547785]