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: [[-31, -27, -17, 46, -31], [17, 25, -2, 49, -31], [4, -38], [-48, -35, 18, -32], [13, 39, 25, 30], [38, 29, -3, 43, -26], [23, -21, -16, 24, 33]]

SOLUTION: [46, -2, -152, 27648, 30, -988, -384]

PROBLEM: [[-24, 26, 13, 37], [-5, -23, -15, -49, 29], [45, 47], [8, 10]]

SOLUTION: [-624, 0, 0, 80]

PROBLEM: [[20, -42, 20], [1, 50, -19], [10, 13], [48, 18, 20, -45, 10], [43, -21, -13, 9, -6]]

SOLUTION:
[-16800, 50, 10, 172800, -6]