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: [[-6, -2, 20, 50], [31, -17, -31, -36, 39], [15, -26, -41], [21, -34, 50, -40, -36], [42, 22, -45, 32], [-39, 20, 31, 50, -36], [45, -1, -21, 44], [-2, 22, -17, 2, -22], [14, -49], [-12, 36, 40, 42, 41], [23, 32], [14, 13, 26, -39, 6], [32, -16, 7, 20, 5], [46, 29], [27, -44, -25]]

SOLUTION: [12000, -36, -26, -2448000, 29568, -36000, 44, 1936, 14, -725760, 32, 2184, -10240, 46, -44]

PROBLEM: [[-43, 34, 32, 4, 22], [-9, -20, -4, 24, 1], [-7, -16], [46, -47], [-50, 41], [16, 0, -49, 49, -23], [12, 13], [-46, -1, -24, 43], [39, -23, -13, -42, 44], [35, -45], [42, -7], [-34, 26, -13], [-20, -27, -16, -6]]

SOLUTION: [95744, 1920, -16, 46, -50, 0, 12, 1104, -1848, 0, 42, -884, -1920]

PROBLEM: [[43, -10, 28, 18, -25], [-28, 36, -3, -11, 3], [15, -35, -40, 36, 0], [42, 25, 17, 44], [-50, 43, -25, 5, 13], [20, -41, 14, 23, -39], [21, 30], [-32, 15, -24, 27]]

SOLUTION:
[-5040, -1008, 0, 1848, -50, 280, 30, 768]