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: [[21, -3, 25, -28, 25], [-49, -41], [42, 44, -22], [-19, -2]]

[1102500, 2009, -40656, 38]