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: [[11, -21, 50, -45, 41], [42, 10, 15, 38]]

[21309750, 239400]