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: [[-30, 7, -21, -29, 12], [15, -5, 19, -47], [-48, 5, 25], [28, -42], [-45, 5, -28, -28, 15], [38, 34], [43, 2, 8, 33, 5]]

SOLUTION: [-360, 0, -48, -1176, 784, 1292, 16]

PROBLEM: [[40, -27, 50, -24], [17, 8, -49], [-10, 48, -1, 28, -36], [13, -42], [-27, -11, -45], [-24, -11], [14, -10, -33, -1, -26]]

SOLUTION: [-48000, 8, 483840, -42, 0, -24, 3640]

PROBLEM: [[29, -46, 21], [-1, -3, -48, 43, -18], [4, 37], [-1, -12], [-49, -49, -3, -11, 25], [-10, -7], [-49, -4, 5, -3], [26, -21, -41], [-26, -11, -43]]

SOLUTION:
[-46, 864, 4, -12, 0, -10, -4, 26, -26]