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: [[21, 7, 1], [-43, -43], [-1, 11, -6, -31, 33]]

[147, 1849, -67518]