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: [[-15, -10, 47], [24, 31], [1, 22, -23, 48], [-47, 5, -45, 35, -4]]

[7050, 744, -24288, -1480500]