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: [[-18, 32, -12], [-36, 37, 40], [-8, -20, 44, -36, 3], [-49, -10, -45, -45]]

[6912, -53280, -760320, 992250]