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: [[-6, 46, 21], [-23, 40], [-31, 38, -24], [-23, -16, 6, 46], [-29, -43]]

SOLUTION: [-276, 40, -912, -4416, 0]

PROBLEM: [[-24, 17], [17, -5, -26, 42], [4, -1, 4, -21], [-28, -19, -18, -15, -47], [11, 31], [49, -7], [37, 4, 48, 47, -13], [21, 48], [-46, -27, -24], [-4, 19, 10, 44, -12]]

SOLUTION: [-24, -1092, 16, 504, 0, 0, 192, 48, 1104, 21120]

PROBLEM: [[49, 13], [32, 46], [32, -27, 10, 3, -15], [-45, -47], [-46, -28, 21]]

SOLUTION:
[0, 1472, 320, 0, 1288]