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: [[12, 6, -20], [-18, -10], [-49, -1], [-39, 15], [12, -29, -4, 6, 47], [-29, 5, -13, -31, -2], [39, 13, -20, 17], [8, 39, -34, 17, 28], [-39, -46, 32, 30, 18], [-8, 49, 26], [-41, -5, 9, -36, -11]]

SOLUTION: [-1440, 180, 0, 0, -288, -2, -20, -7616, -794880, -208, -36]

PROBLEM: [[-11, -40, 14, 15], [46, -13], [10, -45, -9, 31], [-39, 21, 8, -23, -46], [8, -25], [50, -22, 13], [7, 25, 46], [39, 18, 13, 26, -11], [-25, -40, 32, -19], [34, 35], [50, -3, 20, -37, 44], [2, 37, 50, 2], [22, 25, 29, -42], [-40, -50, 38, -4, -3], [22, -11]]

SOLUTION: [-560, 46, 10, -368, 8, -1100, 46, 468, -1280, 34, 44000, 200, -924, -304000, 22]

PROBLEM: [[-25, -48, 16, 30], [-50, 26, -43, 18, -38], [43, -19, 46, -46, 46], [27, -44, 37, 38, 17], [-44, 43, 50, -18], [-17, 25, -1, 48], [-19, 12, -34], [-47, -13, -32], [4, -36, 11, -23]]

SOLUTION:
[-23040, 889200, -97336, -1672, 39600, 48, -408, -32, -144]