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: [[28, -21, -43], [2, 8, 33, 49], [16, -2, -42, -4, -43]]

[25284, 25872, 231168]