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: [[28, 49], [-9, -22, 27, -43], [-20, 15, -6, 31, -14]]

SOLUTION: [28, -22, -1680]

PROBLEM: [[-46, 35], [47, 10], [-12, 30], [-7, 31, -41], [25, -1, 2, 44, -13], [31, -19, -25, 6, -3]]

SOLUTION: [-46, 10, -360, 0, 88, 6]

PROBLEM: [[-16, -37, -14, 30, 38], [20, -3, -47], [46, 16], [-6, -18, 44, 33], [-36, 6], [3, -36, 32], [-42, 15, -35, 22], [11, -22], [-10, 42], [-12, 12, -30, -15, -12], [-4, 28], [8, -45, 38]]

SOLUTION:
[255360, 20, 736, 4752, -216, -1152, -924, -22, -420, -51840, -112, 304]