Teacher: In this task you will be given a list, of lists, of integers. For every inner list contained in the input list, you should multiply every even number in that list. The output should be a list of integers with the same length as the number of lists in the input list. If there are no even numbers in an inner list you should output 0 for that list.
Teacher: Now, understand the problem? If you are still confused, see the following example:
[[7, -3, -3, 11], [-6, -6, -5, 2], [-8, 4, -3]]
Solution: [0, 72, -32]
Reason: The first inner list has no even integers, so the first number in the output is 0. The second list has -6, -6, 2 for even integers so the second output is 72. The third list has -8, 4 as even numbers so the third output is -32. This is a good example.

Now, solve this instance: [[-37, -26, -43, 31, -25], [28, -46, -10], [31, -14, 26, -6], [6, -50], [-17, -25, -1, -44, -38], [-12, 14, 37, -2, -18], [3, -13, -8, 11], [-8, 15, 31, 13], [5, 48, -7, -10, -1], [-13, 34, -22, -15], [-16, 50, -14, 2], [31, -7, 8, 37], [-42, 6], [-22, -24, -27, -6, 26]]
Student:
[-26, 12880, 2184, -300, 1672, -6048, -8, -8, -480, -748, 22400, 8, -252, -82368]