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: [[-18, -41], [49, 44, 23, 39], [-17, -36, -41, 42, -43], [25, -27, 6, 39, 26], [47, -36, 30, -50], [-28, -4, -4, 38, -6], [41, 17], [-19, 44, 39], [-37, 19, 33, 4], [-9, -41, 20, -49], [41, -10, 49, 10, -49], [31, 43], [38, -16, -29, -20, 3], [-17, -16, 2, -50]]

SOLUTION: [-18, 44, -1512, 156, 54000, 102144, 0, 44, 4, 20, -100, 0, 12160, 1600]

PROBLEM: [[-48, 30, 27, -17], [22, 37, -29], [-17, 21, -50, 43], [20, -15, -25, 31, 5], [21, 50, -43], [-39, 13, 17], [34, 42, 6, -3], [-43, 45, 10], [33, -15, -32, -7], [-44, -12], [-42, -23], [12, -35, -48, -48], [-2, -26, 10, -48]]

SOLUTION: [-1440, 22, -50, 20, 50, 0, 8568, 10, -32, 528, -42, 27648, -24960]

PROBLEM: [[-40, 50, -17, 20, -43], [37, -12, 39, -26, -36], [1, 0, -48], [-41, 33, -50, 13, -40], [-6, 27, 1, -38, -13], [-1, 18, 33, 45, 17], [25, 7, 3], [-17, 49, 47, 45, -20], [50, 9], [16, -42, -42, 42, 47], [5, -8, -47, -38], [31, 46, 47]]

SOLUTION:
[-40000, -11232, 0, 2000, 228, 18, 0, -20, 50, 1185408, 304, 46]