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: [[-37, -6, 37, -37], [-28, -21, -21], [32, 33, 13, -1]]

[-303918, -12348, -13728]