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: [[10, 26], [-50, 47, 38], [44, 37, 45, 43, 39], [-38, -50], [0, -18]]

[260, -89300, 122857020, 1900, 0]