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: [[-25, 26, 28], [16, -9], [-39, 18, -20, 42, 19]]

[-18200, -144, 11203920]