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:
[[21, -8, -12], [-17, -3, -44], [14, 31, 21], [-20, 17, -11, 23], [49, 47, -3, 41, 29], [-11, 0, -24, -36, 14], [18, -19, -15, 29, 48]]
answer:
[96, -44, 14, -20, 0, 0, 864]


question:
[[-30, 7, -21, -29, 12], [15, -5, 19, -47], [-48, 5, 25], [28, -42], [-45, 5, -28, -28, 15], [38, 34], [43, 2, 8, 33, 5]]
answer:
[-360, 0, -48, -1176, 784, 1292, 16]


question:
[[-18, 24, 41, 13], [28, -1, 30, -29], [-34, 45, 24, 12, 21], [46, 2, -16, 4], [-30, 42, -17, -44, -31], [29, 20, 6, -23], [38, -15], [38, 45, -33, 41, -24], [-46, 40, 5, 42, -21], [-34, 26, -40], [-49, 31, -11, -12], [35, -2, 41, -13]]
answer:

[-432, 840, -9792, -5888, 55440, 120, 38, -912, -77280, 35360, -12, -2]