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: [[-50, 48, -18, -40], [39, -18, 46, -35, 4], [48, -43], [39, -23, 42], [-14, -19, 32, 8]]

[-1728000, 4520880, -2064, -37674, 68096]