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, -2, 20, 50], [31, -17, -31, -36, 39], [15, -26, -41], [21, -34, 50, -40, -36], [42, 22, -45, 32], [-39, 20, 31, 50, -36], [45, -1, -21, 44], [-2, 22, -17, 2, -22], [14, -49], [-12, 36, 40, 42, 41], [23, 32], [14, 13, 26, -39, 6], [32, -16, 7, 20, 5], [46, 29], [27, -44, -25]]

SOLUTION: [12000, -36, -26, -2448000, 29568, -36000, 44, 1936, 14, -725760, 32, 2184, -10240, 46, -44]

PROBLEM: [[-19, 28, -49, -21], [-16, 20], [-26, -46, 4, -39], [-12, 12, 40, -21, -4], [43, -20, -28], [17, -11, 24, 40, 7], [-42, -4], [-48, 15, 10], [-48, -50, 2, 6, -39], [6, -8], [-23, 45], [-27, -41, -40, 30]]

SOLUTION: [28, -320, 4784, 23040, 560, 960, 168, -480, 28800, -48, 0, -1200]

PROBLEM: [[17, 2, 19, -27, 36], [-17, 6], [10, 6], [-38, 50, 10, 30], [6, 27], [3, 7, 32, -50, -37]]

SOLUTION:
[72, 6, 60, -570000, 6, -1600]