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:
[[18, -11, -13], [-20, -21, 26], [40, 6, 3]]
answer:
[18, -520, 240]


question:
[[-50, 1], [-35, 28], [-44, -28, -37, 45], [17, 29, -26], [21, 4]]
answer:
[-50, 28, 1232, -26, 4]


question:
[[45, 45, -11], [-9, 10, -18, -45], [-37, -18, -50, -33], [-9, -36], [10, -20, -43, -50], [25, 33, 34, 0], [-14, 2, 14, -39], [25, 17, 3, -8, 10], [48, 17], [42, -32, 6], [-38, 50, 34, -26, -42], [46, -46, 5, -21, 49], [-50, 48, -12, -42], [-14, -46, -5, -7, 33], [2, -31, -48, -2]]
answer:

[0, -180, 900, -36, 10000, 0, -392, -80, 48, -8064, -70543200, -2116, -1209600, 644, 192]