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: [[20, -49], [24, -16, -38, 50], [-40, 37, -13], [-21, 45], [-17, 17, -5], [-2, 47, -16, -2, -17], [22, 37, -27, -31, 44], [-8, 28, 44, 21, 37]]

SOLUTION: [20, 729600, -40, 0, 0, -64, 968, -9856]

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: [[-47, -37, 50, 19], [26, 40, -2], [-49, 18, -34, -24], [38, -11, -31], [12, 26, 36, -36], [6, -13, -29, 36, -42]]

SOLUTION:
[50, -2080, 14688, 38, -404352, -9072]