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: [[-28, -45, -15, -39, -39], [-44, 47, -7], [13, -3]]

[-28746900, 14476, -39]