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: [[-13, 50, 42], [42, -45], [46, -4], [-7, -7, 26, 17, 5], [-40, -2, -36, 5, 46], [-46, 47, 41, 15, 5], [-31, -21], [-10, 9, 49, -21, 1]]

[-27300, -1890, -184, 108290, -662400, -6648150, 651, 92610]