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, 24, 42], [48, -44], [32, 2, 23, -30, -23], [4, -38, 50, 19]]

[-19152, -2112, 1015680, -144400]