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: [[-2, -17, -10], [-4, 9], [-32, -21], [42, 49, 41, -16, 7], [23, 8, -10], [9, -20, -34, 4], [-23, 48], [39, 35, -49], [-40, 50, 45], [-40, 21, -16, 31, 33], [-42, 5, 0], [16, 4, 41, -46], [-11, 40], [37, -28], [23, 28, -7, -28]]

SOLUTION: [20, -4, -32, -672, -80, 2720, 48, 0, -2000, 640, 0, -2944, 40, -28, -784]

PROBLEM: [[41, 49], [-26, 45, 8, 27, -23], [15, -9, 13], [-50, -44, -21], [46, 3, -31]]

SOLUTION: [0, -208, 0, 2200, 46]

PROBLEM: [[-24, 16, -12, -6, 18], [2, -18], [0, -5, 30, -17], [-15, -29, -20, -1]]

SOLUTION:
[-497664, -36, 0, -20]