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: [[10, -25, 29, -10], [-8, 31, 35, -48, -1], [-33, -29, 16], [3, -2], [-37, 19, -5, 16], [-34, -47, -33], [-30, 0, 37, 1], [-37, 45, 39, -5], [-47, 20, -20, -30, -29], [-37, -27, 46], [-17, -26, -35, 14], [-5, -38, -1, 35, 44]]

SOLUTION: [-100, 384, 16, -2, 16, -34, 0, 0, 12000, 46, -364, -1672]

PROBLEM: [[37, -20], [-12, -49], [32, -24, 13], [-10, -9, 37, 7, 19], [7, -1, -38, -1, -41], [-10, 41]]

SOLUTION:
[-20, -12, -768, -10, -38, -10]