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: [[27, 10, -35, -43], [30, -35, 15, 28], [-29, -21]]

[406350, -441000, 609]