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: [[-23, -17, -35, -19], [19, -22], [49, -8, -18, 30], [-39, 20, -19, 47]]

[260015, -418, 211680, 696540]