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: [[42, 47, -40], [-10, 47], [-23, 24]]

SOLUTION: [-1680, -10, 24]

PROBLEM: [[-41, 14, 27, -41, 50], [-42, 48, -8, 10], [50, 27, 21, -38], [0, -34], [24, 30, -22], [-35, 25, -15, -19, 46], [34, 21, 10, -24, 31], [29, 44]]

SOLUTION: [700, 161280, -1900, 0, -15840, 46, -8160, 44]

PROBLEM: [[-27, 24, 29, -36, -35], [-32, -7, -30, -9, -44], [12, 4, 6, 41, -14], [14, -31, 8], [48, -13, -44, -29], [20, -16], [-46, -5, 0, 8], [-37, -24, 46, 16, 26], [40, 27, 47], [22, 23, -28, 4]]

SOLUTION:
[-864, -42240, -4032, 112, -2112, -320, 0, -459264, 40, -2464]