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: [[40, -30, -13], [2, 45, 26, 14], [-4, -36, -37, -5]]

[15600, 32760, 26640]