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.
[[-23, -27, 8], [49, -21, -33], [-32, 19, -36, 26, -42], [-23, 47, 2, -14, -12]]