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: [[5, 37, 29, 31, -39], [37, 21, 10], [-17, 21, 38, -26, 5]]

[-6486285, 7770, 1763580]