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: [[-11, 31, -49, 49, -7], [-8, -25, -32, -6, -8], [23, -36, 35, 42, -30], [-50, -29]]

[-5731187, -307200, 36514800, 1450]