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: [[16, -33, 9, -28, 17], [16, -43, -50, -7, -12], [42, -39]]

[2261952, 2889600, -1638]