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: [[17, -44, -29, 49], [43, 48, -2, -49, 6], [-12, 46, -20, -12, 14], [19, 10, -43, -31], [42, 3], [-43, 7]]

[1062908, 1213632, -1854720, 253270, 126, -301]