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: [[31, 44, -10, 49], [-37, -7, -26, -28, -46], [-25, 41], [-37, -1, 2, -9], [10, 11, 17], [44, 32], [32, -28, -1, 47, 38], [-41, 1, 47, 42], [-15, 29, -50, -26], [22, 40, -35]]

[-668360, -8673392, -1025, -666, 1870, 1408, 1600256, -80934, -565500, -30800]