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: [[19, 13], [3, -26], [36, 31], [45, 12, 20, 42], [-36, 10]]

[247, -78, 1116, 453600, -360]