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.
[[-45, 20, 23], [-8, -8, -7], [50, -47, 25, 23], [2, 37, 42, -16, 26], [-1, -31, -10, 16, 10], [49, -18], [-13, 31]]