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: [[6, -17, 19, 42], [40, -6, 30, -4, -13], [-3, -42], [37, 39, 26], [-7, -23, 16, -15, 42]]

SOLUTION: [252, 28800, -42, 26, 672]

PROBLEM: [[-13, 21], [-41, -49, 8], [7, 25, 41, 23, 40], [-35, -22, -39, 22, -50], [48, -1], [-8, 16]]

SOLUTION: [0, 8, 40, 24200, 48, -128]

PROBLEM: [[43, 24, -30, -9], [-10, -38], [26, -38, 44, -8], [-5, -19, 45], [10, -3, 15, -16, -22], [20, 7], [-23, -49, -10, -42, 44], [-14, 26], [-12, -17], [22, 11]]

SOLUTION:
[-720, 380, 347776, 0, 3520, 20, 18480, -364, -12, 22]