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: [[-28, -17, 15, -9, -49], [-46, -41, -21, -17]]

[3148740, 673302]