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: [[-23, -42, 6, -4, -15], [27, 23, 18, 41]]

[347760, 458298]