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: [[22, -48, -5, 23, -17], [-20, -46, 19, 13], [17, -15], [-37, -15, -47, -49]]

[-2064480, 227240, -255, 1278165]