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: [[-3, -47], [-40, -14, -7, 46, -42], [-21, 7], [3, 17, 32], [9, -43], [39, -49]]

[141, 7573440, -147, 1632, -387, -1911]