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: [[0, -27, -21], [-21, -13, -22, 48, 22], [21, 30, -19, -47, 47], [37, 15, -8, 0, 20], [20, -31, -8, 19, 32]]

SOLUTION: [0, -23232, 30, 0, -5120]

PROBLEM: [[8, 39, -6, -41], [-24, -14, -29, -22], [36, 41, 42, -29], [2, -28]]

SOLUTION: [-48, -7392, 1512, -56]

PROBLEM: [[-23, 24, 46, -10], [49, 34, -50, -19, 27], [-42, 22], [-49, 17], [0, -46, 2, 0, -48]]

SOLUTION:
[-11040, -1700, -924, 0, 0]