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: [[21, 31, -37, 0], [23, 35, -43], [20, -45, 4, -3], [-41, 10, 1], [-44, -3, -49, -27], [43, 17, 28], [32, -40, 12, -46, 6], [-33, 17], [-38, 46, 14, -29, -15], [-3, -17, 24], [26, -43]]

SOLUTION: [0, 0, 80, 10, -44, 28, 4239360, 0, -24472, 24, 26]

PROBLEM: [[-2, 16, -17], [34, -41, 9, 38], [-14, 13, -40, -3]]

SOLUTION: [-32, 1292, 560]

PROBLEM: [[-45, 7, -13, 31], [13, -23, 1, 29, 17], [4, 23, 47, 1], [-5, 49, 8], [-42, 8], [13, 28, 11, 46, 9], [-31, -25], [-37, -48, -40], [-25, -44, 48], [4, 30, -48], [-40, -2], [33, -46, -45, 43, 13], [40, 32, 40, 45, -23], [17, 6, -41, 16]]

SOLUTION:
[0, 0, 4, 8, -336, 1288, 0, 1920, -2112, -5760, 80, -46, 51200, 96]