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: [[18, 7, 2, -50, 8], [8, 28, 32, 30], [13, -31, -9], [-8, 4], [21, 6], [15, -41, -1, -27, 44], [9, -39, -24], [-28, -18, -16, 9], [-45, 47, -44]]

SOLUTION: [-14400, 215040, 0, -32, 6, 44, -24, -8064, -44]

PROBLEM: [[-46, 44, -19, -44], [32, -48, 32], [12, -12, -48, -43], [8, -13, 47, -42, -42], [17, 34], [34, 0, 26, -44], [21, 17, 30, -18], [18, 4, 27], [-28, 30, 37], [-23, -22], [-10, 19, -46, -13, -1], [-34, -39, -15, 7], [50, -19, -5, -6, 38], [-41, 42, 15, 37, -42], [6, -28, -32, 22]]

SOLUTION: [89056, -49152, 6912, 14112, 34, 0, -540, 72, -840, -22, 460, -34, -11400, -1764, 118272]

PROBLEM: [[-13, -50, 30, 16, -18], [14, 7], [15, -35, 18, 44, 40], [25, -42, 48, 24, 45], [-24, -23, -1, -12, 26], [-36, 44], [25, 43, 32, 11, -13], [-27, 19], [4, -14, 23], [35, -30, 17, -50], [-31, -41, -44, -44, 15], [-37, -27, 28], [-24, -47, -44, -15, -8], [37, 36, 17]]

SOLUTION:
[432000, 14, 31680, -48384, 7488, -1584, 32, 0, -56, 1500, 1936, 28, -8448, 36]