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: [[-39, 26, -30], [33, 15], [-36, -32], [38, -8, 34, 17, -20], [-21, 18]]

[30420, 495, 1152, 3514240, -378]