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: [[-6, 34, -28, -13], [-48, 39, -50], [21, 0, 3, -30], [-34, 43, 22, 28, -34]]

[-74256, 93600, 0, 30620128]