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: [[-42, -26], [2, -37, -37], [31, -20, 22, -21, -2]]

[1092, 2738, -572880]