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: [[25, 20, -34], [50, 8, -35], [31, 39, 49, -38]]

[-17000, -14000, -2251158]