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: [[-10, 39, -31, 2], [-45, 4, 34], [-19, 25, 47, -4], [15, -3], [-10, 18, 50, 30]]

SOLUTION: [-20, 136, -4, 0, -270000]

PROBLEM: [[49, -24, -21], [0, -42, -18, 12, -30], [-5, 12, -34, 39], [-45, 23, 13, 42], [19, 44], [22, 48, 39], [-50, -40, -36, -23], [8, 3], [-48, 21, 45, -14], [12, 36, 24, 1, -29], [47, -37, -30, -49], [33, -2, -38, 14], [-41, 43, 17, 34]]

SOLUTION: [-24, 0, -408, 42, 44, 1056, -72000, 8, 672, 10368, -30, 1064, 34]

PROBLEM: [[29, 23, -11], [0, -1], [31, -4, 18, -19], [33, 33], [-9, -31, -26, -45], [5, -38, 9, -6, 44], [3, 29, 17, -15, 46], [4, 12]]

SOLUTION:
[0, 0, -72, 0, -26, 10032, 46, 48]