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: [[49, 13], [32, 46], [32, -27, 10, 3, -15], [-45, -47], [-46, -28, 21]]

SOLUTION: [0, 1472, 320, 0, 1288]

PROBLEM: [[17, 22], [8, 3, 48], [37, 38, -28, -24, -19], [-41, -48, -2], [-9, -2, 18, -22, -42], [-28, -26, 23, -16, -27], [-2, -27, -12, 28], [-5, 28], [-34, 36], [-3, 13, -32, 18, -27], [-46, 31, -7, 32], [28, -2, 12]]

SOLUTION: [22, 384, 25536, 96, -33264, -11648, 672, 28, -1224, -576, -1472, -672]

PROBLEM: [[21, 5], [7, -37], [-16, -27], [6, 13, 40, -39, -36], [-50, 29], [20, 9, 35, 21, -3], [10, -5, -44, 34, 21]]

SOLUTION:
[0, 0, -16, -8640, -50, 20, -14960]