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: [[-2, 21, -1], [10, -17, 7], [-17, -6, -2, 6], [-39, 47], [36, 42, 3, 11, 45]]

[42, -1190, -1224, -1833, 2245320]