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:
[[0, 50, 16, -48, 7], [-2, -21, 12, 44], [20, -45, 14, 47], [-48, 10, -17, 34, 21]]
answer:
[0, -1056, 280, -16320]


question:
[[-39, -3, 16], [-46, 24, -47, 7], [-35, -28], [12, 7], [50, 13], [9, 35, 0], [-25, -50], [-16, 13], [-42, -7, 41, 23, -22], [-31, 42]]
answer:
[16, -1104, -28, 12, 50, 0, -50, -16, 924, 42]


question:
[[50, 48, 36, 21], [3, -29, -31], [-6, -19, 11], [-26, 32, 14, -43], [50, -23, 38, -12], [38, 5, -3], [-29, -37, -17, -19, -22], [-39, 19, 34, -28], [-22, -14, -43], [41, 17], [-34, 30], [42, -3, -4, 33, 37], [44, 50], [29, 26, 18, 34, -18], [6, 50, 8, 40, -10]]
answer:

[86400, 0, -6, -11648, -22800, 38, -22, -952, 308, 0, -1020, -168, 2200, -286416, -960000]