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: [[21, 7, 23, 23, -23], [48, 6, 44, -6, -29], [12, 18, 16, -45, -23]]

[-1788549, 2204928, 3576960]