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: [[-28, 0, 42], [5, -46], [27, 9, -8, 16, -49], [12, 25, 44, -47, 13]]

[0, -230, 1524096, -8065200]