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: [[-14, 43, 24, 49, 14], [-42, -1], [31, -43, -50, 11]]

[-9911328, 42, 733150]