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: [[9, -3, -35, -21], [20, 11, 39, 34], [17, 11], [6, -25, -48], [39, 8], [25, -1], [33, 47, 42], [-48, 39, 0, -47], [36, 36]]

SOLUTION: [0, 680, 0, -288, 8, 0, 42, 0, 1296]

PROBLEM: [[-31, 44, -16, 29, -45], [-38, -18, 27], [44, -20, -35, 29], [9, -12], [19, 24], [-18, 50], [-15, -10, 28, 40], [-28, 5, 42], [-7, -13, -35, 25]]

SOLUTION: [-704, 684, -880, -12, 24, -900, -11200, -1176, 0]

PROBLEM: [[49, 37, -8], [40, -43], [39, -24, 30, -49, -23], [30, -28], [-20, -1, -14, -47], [6, -28, 39, -40, -23], [8, 7], [-8, -23], [-32, -5, 0], [27, 36, 27], [-30, -8], [-50, 6, 5], [49, 19], [4, -19, 36, 36, -48]]

SOLUTION:
[-8, 40, -720, -840, 280, 6720, 8, -8, 0, 36, 240, -300, 0, -248832]