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: [[-4, -31, 11, 39], [17, -7, -44, 3], [-17, 33, 18, -42], [-20, -13, -9, 48, -15]]

SOLUTION: [-4, -44, -756, -960]

PROBLEM: [[-15, -40], [-10, -38, 23, 2, -11], [-1, 37, -27, -48], [-33, -5, 13, -22, 10], [31, -7, 45], [48, -29], [26, 0], [36, 20, 33, 43], [6, -18, -39], [37, -37], [-16, -25, -15], [-28, -23], [10, -30, -38]]

SOLUTION: [-40, 760, -48, -220, 0, 48, 0, 720, -108, 0, -16, -28, 11400]

PROBLEM: [[-41, 48], [11, 36, -41, 42, 40], [-45, -26, -22, -18, 49], [45, -25, -18, -11], [7, 5]]

SOLUTION:
[48, 60480, -10296, -18, 0]