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: [[50, -34, -12, -37], [3, -36, -18, -13], [1, 40, -43, -45, -24], [-37, 39], [45, 28, 35, -36, -26], [42, -6], [14, -40, -33, 6], [40, 15], [31, -18]]

[-754800, -25272, -1857600, -1443, 41277600, -252, 110880, 600, -558]