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: [[34, 4, 49, -46, 3], [15, 21], [13, 29, 26]]

[-919632, 315, 9802]