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: [[29, -1, 44], [34, -4, -3, 27, 39], [0, 10, 28, 42]]

[-1276, 429624, 0]