instruction:
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.
question:
[[2, 31, 49], [7, -48], [-5, 16, 2, 28]]
answer:
[2, -48, 896]


question:
[[-12, -16, -49], [38, 8], [41, -37, 4, 31], [37, -10, 8, 31], [-43, -5, 13]]
answer:
[192, 304, 4, -80, 0]


question:
[[-45, 29, 32, 48], [41, -39], [2, 3]]
answer:

[1536, 0, 2]