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, -9, -4, -22], [-9, 29], [-41, -3, 12], [-26, 35, 7], [-22, -28, 50, -42, -49], [9, -3, 20, 5, -3], [41, -49, 44, 35, 27], [10, -46, -48], [32, -21], [47, -15, 28, -13]]

SOLUTION: [-1760, 0, 12, -26, -1293600, 20, 44, 22080, 32, 28]

PROBLEM: [[18, -11, -13], [-20, -21, 26], [40, 6, 3]]

SOLUTION: [18, -520, 240]

PROBLEM: [[21, 50], [6, 28, 12, -7], [-40, 43], [5, -35, -7, -2, 42], [31, -36, -28, -16, 12], [-33, -9], [-35, -9], [-20, -22, 25, 12], [-25, -47, -38, 45, 20], [9, 15]]

SOLUTION:
[50, 2016, -40, -84, -193536, 0, 0, 5280, -760, 0]