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: [[42, -23, -4, -41, -20], [35, 8], [10, -39, -18, 29, -48], [-10, -13, -10], [-43, 19, 25], [-13, 18, -45, 15], [7, -13, -19, 9], [19, 2, -19, 14, -18], [46, 20, -19, 42, -27], [-13, 28], [15, -12], [40, -5]]

SOLUTION: [3360, 8, 8640, 100, 0, 18, 0, -504, 38640, 28, -12, 40]

PROBLEM: [[2, 44, -17], [37, -39, -23, -31, 24], [41, 18, -46, 30, -29], [-10, 22, 24, 14], [5, -43, 17], [4, 36, -34, -13, -18]]

SOLUTION: [88, 24, -24840, -73920, 0, 88128]

PROBLEM: [[14, 9, -48], [-36, 41, 10, 43], [-12, -1], [23, 37], [36, 3], [-7, -50, -38], [22, 25, 22], [-3, -9, 35], [-45, 30, -38, 34], [28, 1, 46, 43, 23], [-43, 47, 42], [8, 37, 21, -22, 43], [-7, -9]]

SOLUTION:
[-672, -360, -12, 0, 36, 1900, 484, 0, -38760, 1288, 42, -176, 0]