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: [[-17, 14, -8, -31, -2], [-9, 8, -31, -26, -40], [-3, 18, -35], [40, -23, -30, 28]]

SOLUTION: [224, 8320, 18, -33600]

PROBLEM: [[19, 14], [26, 35, 27], [-46, 18, 1], [-9, 3, 17, -13, 30], [46, 28, -20, 22, -42]]

SOLUTION: [14, 26, -828, 30, 23802240]

PROBLEM: [[-41, 39, -5], [21, 49], [4, -6], [-26, -19, -13], [8, 7, -29, 2], [-3, 3], [22, -2, -41, 42, -47], [-5, -21, -39], [43, 13], [-33, -26, 12]]

SOLUTION:
[0, 0, -24, -26, 16, 0, -1848, 0, 0, -312]