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: [[-34, -9, -47], [-17, 16, -24, -50, 4], [-13, 20]]

[-14382, -1305600, -260]