TASK DEFINITION: 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.
PROBLEM: [[21, 22, -31, -12, 29], [44, 20, 0, 26], [1, -33, 50, 4], [47, -35, 50, -31], [49, -26, 47, -36], [-39, -28], [44, 2, 13, 41, -9], [4, -14, -9, -20], [24, 35, -24], [-30, 45, 23, -17], [-18, 38, -29, 29], [-50, 13]]

SOLUTION: [-264, 0, 200, 50, 936, -28, 88, 1120, -576, -30, -684, -50]

PROBLEM: [[-2, 12], [14, 47], [4, 0, -4, 4, 30], [-46, -24, 13], [48, -30], [40, -41, -40]]

SOLUTION: [-24, 14, 0, 1104, -1440, -1600]

PROBLEM: [[-8, -29, -47], [42, -18], [27, 20], [-22, 18, -10, -31], [21, -36, -45], [37, -26, 0], [-44, -41, -7, 7, -11], [-24, 8], [0, -10, 24, 44, -23], [21, -44], [-17, -1, 14]]

SOLUTION:
[-8, -756, 20, 3960, -36, 0, -44, -192, 0, -44, 14]