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:
[[-11, -21, 30, -14], [21, -38, -1, -39], [32, -23, -42], [31, 9, -13], [12, 49], [49, 44], [49, -21, 11, -5, 46], [-2, 35, 45, -19], [42, 15, -9, -4, 25], [-48, 2, 44, 7], [-4, -24, -35], [3, 29, 12], [27, 1, 20]]
answer:
[-420, -38, -1344, 0, 12, 44, 46, -2, -168, -4224, 96, 12, 20]


question:
[[-5, -24, 16, -14, 15], [17, 43, 1], [-49, 17, -27, -18, -24], [49, -31], [-12, 13, 49], [48, 17, 45, 44, -47], [-21, 23]]
answer:
[5376, 0, 432, 0, -12, 2112, 0]


question:
[[46, -21, -12], [-47, -39, 14, 11, -33], [1, 11, 40, -49, -31], [11, -22, 1, 2], [-41, -15, -19, 27, 34], [44, 15, 0, -50, 21], [22, 22, 19, -39, -36], [23, -3, 41, 28], [-39, 26, 46, 6]]
answer:

[-552, 14, 40, -44, 34, 0, -17424, 28, 7176]