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: [[1, 46, -20], [36, -9, 24, 43, -5], [-45, 7], [29, -3, -23, 47, 23], [-12, -6], [40, -32, 4], [-17, -30, 13, 9]]

SOLUTION: [-920, 864, 0, 0, 72, -5120, -30]

PROBLEM: [[23, 12], [7, -46, 34, -2, 22], [-20, 12, -45, 15, 6], [30, -4, 50, -26, -39], [26, 43, -22, 34, -29]]

SOLUTION: [12, 68816, -1440, 156000, -19448]

PROBLEM: [[-18, -47, 13], [-20, 29, 21, 33, 9], [-29, 28, 29, 24], [39, -10, 3], [12, -8, 9, 36], [3, -43, 47, -13, -8], [-40, -25, 38, 5], [-41, -13, 17], [47, 15, -16, 21], [-7, -47], [4, -47, -16, -3], [-46, 48, 39, 46, -31], [-47, 10, -35, -8], [31, 13, 35], [33, 47, -13, -4, -31]]

SOLUTION:
[-18, -20, 672, -10, -3456, -8, -1520, 0, -16, 0, -64, -101568, -80, 0, -4]