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: [[-4, -23, 6], [50, -31, -31, 41, -20], [3, 15, 12, -6, 45], [19, 18, -32, -17]]

[552, -39401000, -145800, 186048]