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: [[13, -25, 15], [10, -5, 19], [-30, 14, -11, 6, -9], [-8, 47, 50], [-47, 42, -36]]

SOLUTION: [0, 10, -2520, -400, -1512]

PROBLEM: [[-1, 49, 13], [2, 16, 6, 43], [36, -13, 9, 30, -48]]

SOLUTION: [0, 192, -51840]

PROBLEM: [[-18, 30, 1, -24, 11], [-13, -15, 33], [49, 13, 16], [-34, -27, 21], [-37, 26, -41], [4, 25, 43], [35, -26], [-43, -12], [0, -22, -29, 31], [-33, 28, -15, 30], [-43, -39], [-37, 22], [47, -50, 14, 12, -30]]

SOLUTION:
[12960, 0, 16, -34, 26, 4, -26, -12, 0, 840, 0, 22, 252000]