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: [[-12, -37, -35, -49], [-49, 36, 47, 8, 37], [45, 36, 38]]

[761460, -24540768, 61560]