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: [[-19, -39, -7], [1, -47, 41, -31, -48], [18, -39, -43, -27], [3, -10]]

[-5187, -2867376, -815022, -30]