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: [[-4, 13, -43, 17, -28], [-40, 29, 48, -12]]

[-1064336, 668160]