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: [[-10, 5, -35, 48, -45], [31, -23, 8]]

[-3780000, -5704]