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, 12, -22, -2, 9], [20, 0, 7, -48], [4, -49, 41], [5, -20, 49], [-39, -17, -34, 43, -20], [-31, 4, -16, 47, -13], [20, 30], [28, -32, 41, 47], [-37, -33, -25], [50, 20, -23, 11, 44], [45, -11, 34], [-25, -13], [-9, -16, -20], [24, 34, 20, -32]]

SOLUTION: [9504, 0, 4, -20, 680, -64, 600, -896, 0, 44000, 34, 0, 320, -522240]

PROBLEM: [[-36, 13, 37, -31], [-3, -10], [18, 17, 36], [-11, 35, 27, 30, 37], [4, 8], [31, 38, -26], [-29, 5], [9, 14, 37, -17], [28, 47, 24, -20, -21], [21, -13]]

SOLUTION: [-36, -10, 648, 30, 32, -988, 0, 14, -13440, 0]

PROBLEM: [[-29, 10, -14, -27, -24], [-44, 42, 25, -13], [-43, -12, 16], [-11, -38], [-2, -45, -24]]

SOLUTION:
[3360, -1848, -192, -38, 48]