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: [[26, -11], [-28, 42, 35], [-8, 45, 36], [-26, -45, 16, 46, 4]]

[-286, -41160, -12960, 3444480]